Questions on Algebra: Trigonometry answered by real tutors!

Tutors Answer Your Questions about Trigonometry-basics (FREE)

Question 371995: The expression below is the factorization of what trinomial? Enter the trinomial in descending order. Use the caret (^) to enter exponents. For example, enter x2 as x^2.
-1(x - 6)(x + 8)
Click here to see answer by ankor@dixie-net.com(15656)

Question 372333: Please help me solve: sin(3pi). I know i have to use the basic trigonometric functions, but I am not sure how
Click here to see answer by neatmath(300)

Question 372386: Can someone please explain how to find all solutions of sin(x/2)+cosx-1=0? I have been out of school for quite some time and I don't remember how to do this.
Click here to see answer by robertb(4012)

Question 372572: Find the center of the circle using these three points: (0,1),(8,1),(4,5)
I still can't figure how to solve this please help.
Click here to see answer by Fombitz(13828)

Question 372680: find the radian measure of the central angle of a circle of radius r=4 inches that intercepts an arc length s=20 inches
Click here to see answer by Fombitz(13828)

Question 372688: find the length of the arc on a circle of radius r=5 yards intercepted by a central angle Theta = 70degrees
Click here to see answer by Fombitz(13828)

Question 372677: use and identify to find the value of sin2 50degrees + cos2 50degrees
Click here to see answer by Fombitz(13828)

Question 372130: Hello
Could you please answer this question
I have tried to answer it but all i get is 21m and it says in the question that it is not 21m
Thanks
A spider and a ﬂy are in the same room. The spider is hungry and the ﬂy is asleep. The room is 15 m long, 6 m wide and 6 m high. The spider is on an end wall, 0.5 m from the ceiling and halfway between the side walls. The ﬂy is on the other end wall, 0.5 m from the ﬂoor and halfway between the side walls. The spider wants to reach the ﬂy but must crawl on the walls, ceiling and ﬂoor to get to its prey. What is the shortest route the spider might take? (Hint: The answer is not 21 m.)
Click here to see answer by Alan3354(30993)

Question 372685: find the co-terminal angle for the given angle -268 degrees
Click here to see answer by Edwin McCravy(8909)

Question 372823: cos(pi/4)+cos(3pi/4)
Click here to see answer by nyc_function(2733)

Question 372820: sin(150)+sin(30) [degrees]
find the value of the sum
Click here to see answer by nyc_function(2733)

Question 372794: THE TERMINAL ARMS OF ANGLES IN STANDARD POSITION PASS THROUGH THE FOLLOWING POINTS. FIND THE MEASURE OF EACH ANGLE IN RADIANS, TO THE NEAREST HUNDRETH
a) (-3,14)
b) (6,7)
Click here to see answer by jsmallt9(3296)

Question 373748: Can you please help me to prove a tangent subtraction identity tan(a-b)=(tana-tanb)/(1+tana*tanb) using geometric techniques?
Thank you so much!
Click here to see answer by solver91311(16897)

Question 373625: Determine the greatest possible value for B to the nearest tenth if A = 30°, a = 5, and b = 8.

Click here to see answer by jsmallt9(3296)

Question 373466: what are the solutions to sin2x=sinx
Click here to see answer by jsmallt9(3296)

Question 373947: using the periodic properties of trigonometric functions find the exact value of the expression cos(8p/3)?

Click here to see answer by Edwin McCravy(8909)

Question 373951: Can you please help me. Please!
Solve 4sin(square)A + 1 = sin(square)A + 2 to the nearest ten minutes or nearest tenth of a degree in the interval ( 0º less than or equal to A less than 360º)
Thank you very much!

Click here to see answer by Edwin McCravy(8909)

Question 373949: Can you please help me.
Solve 1+2sinθ= cscθ for θ in an interval ( 0º less than or equal to θ less than or equal to 360º)
Thank you very much!
Click here to see answer by Fombitz(13828)

Question 374128: i)- Solve the following equations for 0° < x < 360°.
a) 2sinx cosx = 3 sinx
b) 1 - cosx = √3
Click here to see answer by Fombitz(13828)

Question 295913: if theta=-pi divided by 3, what is the value of y?
Click here to see answer by rfadrogane(214)

Question 374557: Please help me solve this question sin degree 32?
Click here to see answer by rfer(12662)

Question 374824: how to solve 2sin^2x-3sinx+1=0
Click here to see answer by vasumathi(46)

Question 374828: 1. Find sin B and cos B if tan B is 40/9.
2. Find sin A and tan A if cos A is 3√34/34.

Click here to see answer by vasumathi(46)

Question 374828: 1. Find sin B and cos B if tan B is 40/9.
2. Find sin A and tan A if cos A is 3√34/34.

Click here to see answer by Fombitz(13828)

Question 374833: Simplify the expression sin(x) + cos(squared(x)/sin(x).
Click here to see answer by Fombitz(13828)

Question 374918: Verify the following identity cos(x)sin(squared)(x)+cos(cubed)(x)/
sin(x)=cot(x)
Click here to see answer by solver91311(16897)

Question 374884: im i gay
Click here to see answer by Fombitz(13828)

Question 375019: Please help me solve this word problem:
In the back stockroom at the Wheel Shop, the number of seats and horns equaled the number of wheels. The number seats and handlebars equaled the number of horns. Twice the number of wheels is equal to three times number of handlebars. Determine the relationship of horns to seats.
Click here to see answer by Alan3354(30993)

Question 375092: Verify the identity: cos^23x=((1+cos6x)/2)
Click here to see answer by robertb(4012)

Question 375189: if cosA=3/5 what is the value of cos3A?
Click here to see answer by robertb(4012)

Question 375279: Using mathmatical induction(two step process),, prove the formula 3+5+7...+(2n+1)=n(n+2).
Click here to see answer by Jk22(389)

Question 375278: Find sum ofthe 1st six terms in the geometric sequence 8,4,2?
Click here to see answer by Fombitz(13828)

Question 375275: Find all angles in degrees that satisfy the equation. Round approximate answers to the nearest tenth of a degree.
sin = -0.241
Click here to see answer by Fombitz(13828)

Question 375341: y- -4 sin x
Click here to see answer by Fombitz(13828)

Question 375382: Verify
(1+tanx/sinx)-secx=cscx
Click here to see answer by Alan3354(30993)

Question 375459: The tailgate of a truck is 2 1/2 feet above the ground. The incline of a ramp used for loading the truck is 14 degrees. Find the length of the ramp. round your answer to one decimal place.
Click here to see answer by ewatrrr(10682)

Question 375536: Find angles so that CosACosB-SinASinB=1
Click here to see answer by user_dude2008(1861)

Question 375631: You are 36 miles from a friend. You both start riding your bicycles toward eachother at the same time. You travel 15 mph and she 3 mph slower. How far will you travel befor eyou see your friend?
I need a let statement for x and y
Click here to see answer by mananth(12270)

Question 375755: Use a sum-to-product formula to rewrite
cos 5a + cos 4a
as a product
Click here to see answer by vleith(2825)

Question 375922: Using a calculator, determine the solutions for each question, to two decimal places, on the interval 0<=x<=2pi.
sin2x = 1/sqrt2
I got one answer as 0.39 and 1.18 but how do I continue from there seeing as how the domain is from 0<=x<=2pi.
Thanks.
Click here to see answer by Alan3354(30993)

Question 375921: The dimensions of a rectangular garden were 4 m by 5 m. Each dimension was increased by the same amount. The garden then had an area of 56 m^2. Find the dimensions of the new garden.
Click here to see answer by Fombitz(13828)

Question 375898: I am so appreciated for helping me out these questions:
1.(x-2)(x+3)^2 OVER x^4-13x^2+36.
2. If polynomial p(x)=2x^3 -3x^2-10 has exactly one real zero r, where -1<=r<=1, which following is true: A. -1 3. Which shows a portion of graph of y= y|-|-x|| ?
4. what is x if 3x^2-2+7=0 then (x- 1/3)^2= ?
5. If y=b^x and b>1, which one is true: A log y b=x. B. log b x=y. C. another answer
6. the radian measure of angle containing x degree is: A.Pi x/180 B. Pi x/ 180. C. other answer
7.If f(x)= x^2, when x>0 and c>1, then f(x^c)= ?
8 2log10x-log10y=?
9.for x#0, if f(x)3x^2 and g(x)=1/2, then f(g(x))= ?
10 3+i/2-i = ?
11. if cotx^0=1, then x=?
12. y=x+1 and xy=2 so what x?
13. where defined tanx=?
14. what is the solution set of 2sin^2(x)-3sin(x)-2=0 where 0<=x<=2pi
Click here to see answer by Fombitz(13828)

Question 375886: I have been working on this math problem and i don't understand how to do it. I was wondering if someone could help me. I would deeply appreciate it. Please and Thank you!
Prove the Identity
sin3x+sinx/sin3x-sinx is equal to 2cos^2x/cos2x

Click here to see answer by nyc_function(2733)

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