Questions on Algebra: Trigonometry answered by real tutors!

Tutors Answer Your Questions about Trigonometry-basics (FREE)

Question 353880: What is the value of this trigonometric ration: cot36 degrees (using a calculator)
Click here to see answer by Alan3354(31538)

Question 353880: What is the value of this trigonometric ration: cot36 degrees (using a calculator)
Click here to see answer by ewatrrr(10682)

Question 354414: Find all solution of the equation algebraically
9u^2/3+12u^1/3+4=0
Click here to see answer by Alan3354(31538)

Question 354719: What is the formula for sin(3x)?
Click here to see answer by Alan3354(31538)

Question 354866:
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Question 355078: Two cyclists, 90 mi apart, start riding toward each other at the same time. One cycles twice as fast as the other. If they meet 2 h later, at what average speed is each cyclist traveling?
Click here to see answer by mananth(12270)

Question 355076: A man is walking away from a lamppost with a light source 6 m above the ground. The man is 2 m tall. How far from the lamppost is the man when his shadow is 5 m long?
Click here to see answer by robertb(4012)

Question 355122: Find cos (theta).
Given: sin (theta)=1/2
and (theta) is an acute angle
I need help with the steps on how to find cos. I thought I had the right formula, but I don't remember how to use it correctly.
Click here to see answer by vleith(2825)

Question 355082: set y=0 and solve the resulting equation
y=3sq root of x- 8/sq root of x-10 Thank you
Click here to see answer by Fombitz(13828)

Question 355061: Assume that a is an angle in standard position whose terminal side contains the point (-12, -5). Find the exact values for the trig functions, sin a,cos a,tan a
Click here to see answer by Fombitz(13828)

Question 355697: please help me solve this equation
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Question 355697: please help me solve this equation
Click here to see answer by Theo(3504)

Question 355697: please help me solve this equation
Click here to see answer by ewatrrr(10682)

Question 355709: how do u solve the quadratic of
Click here to see answer by Fombitz(13828)

Question 355714: please help me solve this equation
Click here to see answer by mananth(12270)

Question 355990: find X in 3/X=5.
would X be 3/5?

Click here to see answer by rfer(12731)

Question 356333: question 1: Draw a diagram to solve this problem: Ajax is 8 km due west of Oshawa. Uxbridge is 16 km NW of Oshawa. How far is it from Ajax to Uxbridge? Explain whether you have enough information to solve this problem.
Click here to see answer by edjones(7569)

Question 356343: A children s play area is triangular. The sides of the play area measure 90m,225m,and 255m respectively. Calculate the area of the play area.
Click here to see answer by ewatrrr(10682)

Question 356335: :Given the points A(0,0),B(4,3) and C(2,9). what is the measure of /_ ABC?
Click here to see answer by Fombitz(13828)

Question 356301: What is the reciprocal of 3-the square root of 5? How to express as a rational number?
Click here to see answer by edjones(7569)

Question 356567: In triangle ABC, tanA= 3/4, tanB= 1, and a=10; find b in simplest radical form.
I've tried this many times but i just can get the answer right.
Click here to see answer by stanbon(57984)

Question 356673: How do I factor this using difference of two squares?
x^8+12x^4+64

Thanks a million!!!
Click here to see answer by Fombitz(13828)

Question 356522: find all solutions to 5sinx+1=3sinx
Click here to see answer by Fombitz(13828)

Question 356657: Hey, I need help finding "x"
(b^(2n+1))/(b^n)(b^(4n+3)) = b^x
thanks!
Click here to see answer by robertb(4012)

Question 356859: Could you please tell me how to solve sin 405 degrees in fraction form? I can do it on the calculator and get .7071 and I know the reference angle is 45 degrees. I know the answer should be sqrt2/2 but I don't understand how to get that. Thanks for any help you can provide.
Click here to see answer by Fombitz(13828)

Question 356706: The terminal side of theta lies on the line x=0, and pi < theta < 2pi.
Find Tan(theta) and csc(theta)
Click here to see answer by Edwin McCravy(8999)

Question 356746: 1. Solve right triangle, ABC, giving the following information:
Angle A=60 degrees, side c = 15 feet. Round angles to the nearest degrees, sides to nearest foot.
2. A ladder rests against a house, making an angle of 52 degrees with the ground. If the ladder touches the house at a point 52 feet from the ground,, how long, to the nearest foot, is the ladder?
3. A boy whose eye level is two-feet above the ground is standing 18 fet from a tree. His angle of elevation to the top of the tree is 26 degrees. How high, to the nearest foot is the tree?
4
Click here to see answer by mananth(12270)

Question 357170: Find all X in the interval [0,2pi) that satisfy the equation sin2X=0
Click here to see answer by stanbon(57984)

Question 357794: Please help!!!!!!!!!!!
a square has sides of length (3a-4b) inches. express the area of the sqare as a polynomial.

Click here to see answer by mananth(12270)

Question 357727: what is 2cos^2(10)-1 simplified to?
Click here to see answer by Fombitz(13828)

Question 357889: At a distance of 1000 feet from a building the angle of elevation to the top of the building is 36 degrees. Find the height of the building to the nearest foot.
Click here to see answer by mananth(12270)

Question 358056: sec theda - cos theda = sin thedacos theda
Click here to see answer by Fombitz(13828)

Question 358056: sec theda - cos theda = sin thedacos theda
Click here to see answer by stanbon(57984)

Question 358056: sec theda - cos theda = sin thedacos theda
Click here to see answer by nyc_function(2733)

Question 358269: Restrict the domain of that function f so it is one-to-one and has an inverse function. f(x)= -|x-5|+4 Thanks.
Click here to see answer by robertb(4012)

Question 358895: arcsin(x)=0.18 How do I find x?
Click here to see answer by stanbon(57984)

Question 358793: what the square root of negative 100 plus negative 81
Click here to see answer by Fombitz(13828)

Question 358876: use an identity to solve the equation: six^2x -cosx+3=0
Click here to see answer by robertb(4012)

Question 358878: solve the equation on the interval (0,2pi)
tan (x/3) = root 3
Click here to see answer by robertb(4012)

Question 359143: how i do this problem x^3-9x^2+27x-28 and the whole problem divide by x-3
Click here to see answer by ewatrrr(10682)

Question 358824: Verify that...
(Sec(A) - tan(A))^2 = 1-sin(A)/1+sin(A)
Using LHS...I have
sec^2(A)-2sec(A)tan(A) + tan^2(A)
=1-tan^2(A)-2sec(A)tan(A)+tan^2(A)
=1-2sec(A)tan(A)
Now I'm not sure how to proceed.
Click here to see answer by jsmallt9(3296)

Question 359529: If sinetheta > 0 and Tantheta < 0,explain how to find the quadrant in which P (theta) lies
Click here to see answer by Fombitz(13828)

Question 359579: This is a non calculator question.
Tan(A) = 0.75
Using this evaluate;
(tan(A))/(1-tan^2(A))
Click here to see answer by Fombitz(13828)

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