Questions on Algebra: Trigonometry answered by real tutors!

Tutors Answer Your Questions about Trigonometry-basics (FREE)

Question 266343: I need to prove the identity (1+tan^2x)cot^2x=csc^2x
Click here to see answer by Alan3354(30993)

Question 266363: find all the solutions to the equation
csc(theta)-2=0
write all answers in radians in terms of pi
Click here to see answer by user_dude2008(1861)

Question 266599: show that f(x)=(x-2)/(x+3) is invertible by finding its inverse.
(a) what is the domain of f(x)? the range of f-1(x)?
(b) what is the domain of f-(x)? the range of f(x)?
Click here to see answer by drk(1908)

Question 266671: SKATEBOARDING The angle that a skateboarding ramp forms with the ground is 25 degrees and the height of the ramp is 6 feet. Determine the length of the ramp.
Click here to see answer by drk(1908)

Question 266759: Which property of the real numbers is illustrated by the following statement?
-6 x (17 + 14) = -6(17) + (-6)(14)
Click here to see answer by stanbon(57377)

Question 267298: How do you solve 3sin(theta)-2cos^2(theta)=-3?
Click here to see answer by solver91311(16897)

Question 267288: 7x+342-Celulose=42x/z
How do I find Celulose?!?!?!?
Click here to see answer by Alan3354(30993)

Question 267832: in triangle ABC if A=54.3degrees B=63.8 degree and b=12.2 find a
Click here to see answer by Alan3354(30993)

Question 267832: in triangle ABC if A=54.3degrees B=63.8 degree and b=12.2 find a
Click here to see answer by stanbon(57377)

Question 268428: Prove:
1)sec^2x(1-sin^2x)=1
2)sinxcosxtanx=1-cos^2x
3)(cotx/cscx)=cosx
4)((1-cos^2/tanx))=sinxcosx
5)(tanx/secx)=sinx
Can someone please help me by showing me the steps ?? thank you:)
Click here to see answer by drk(1908)

Question 268693: Find the degree measure of 8.30rad and -11.6rad
Click here to see answer by persian52(158)

Question 234000: Airport B is 300 mi from airport A at a bearing N 50°E (see the figure). A pilot wishing to fly from A to B mistakenly flies due east at 225 mi/h for 40 minutes, when he notices his error.
(a) How far is the pilot from his destination at the time he notices the error? Round your answer to the nearest mile.
_ miles
(b) What bearing should he head his plane in order to arrive at airport B? Round your answer to the nearest degree.
N _ degrees East
i can copy picture of diagram on email cause i cant on this, thanks for understanding
Click here to see answer by jkid(1)

Question 268764: -yw-6w+3y^2+18y
Click here to see answer by persian52(158)

Question 269123: Hoping someone will help me with a few more. I need to see the steps:)
Verify:
a)sinx(sinx+cscxcos^2x)=1
b)tanx((cotx/cosx)-sinx)=cosx
c)(1+cosx)(1-cosx)=sin^2x
Click here to see answer by stanbon(57377)

Question 269122: I was hoping someone could help me with these:)
VERIFY:
a)secx(cosx+cos^3xcsc^2x)=csc^2x
b)secx(sinx+sinxsecx)=1+secx
c)tanx(cscx+cotxcscx)=secx+cscx
Click here to see answer by stanbon(57377)

Question 269111: An airplane flies 180 miles from point X at a bearing of 125 degrees, and then turns and flies at a bearing of 230 degrees for 100 miles. How far is the plane from point X?

Click here to see answer by Edwin McCravy(8909)

Question 269256: I am having trouble finding the LCM of 9x^2y and 36xy^3.. I know how to factor the numbers out, but what confuses me are varibles.. can you please help??
Click here to see answer by AnlytcPhil(1277)

Question 269983: what is the formula for solving "what is the diagonal of a rectangle?"
Click here to see answer by rfer(12666)

Question 270202: Factor the Trinomial.
x^2 - 5x + 6
Click here to see answer by drk(1908)

Question 270202: Factor the Trinomial.
x^2 - 5x + 6
Click here to see answer by anicole(2)

Question 270203: 2x^3 + x^2 - 2x - 1
factor out completely.
.
Click here to see answer by palanisamy(496)

Question 270203: 2x^3 + x^2 - 2x - 1
factor out completely.
.
Click here to see answer by anicole(2)

Question 270205: x^2 - 5x + 6
Factor the Trinomial. Please show me how you come to the answer.
Click here to see answer by palanisamy(496)

Question 270234: (-a^2b)^4 (7a^-3)^2
___________________
b^3
Simplify.
I am having some major troble with this problem.
Click here to see answer by Alan3354(30993)

Question 270239:
2(x^2 - 1) - 3(x +5)
Simplify. Could some explain?
Click here to see answer by drk(1908)

Question 270236: sin30+cos240+sin210sin300
Click here to see answer by drk(1908)

Question 270281: Please help me! I am slightly confused!

2(x^2-1) -3(x+5)
Simplify.

Click here to see answer by jim_thompson5910(28598)

Question 270281: Please help me! I am slightly confused!

2(x^2-1) -3(x+5)
Simplify.

Click here to see answer by lil-man(10)

Question 270317: How do I know which are the vertical asymptopes of y=tan(pi)x ?
I know the period=1 and that an appropriate interval would we (-1, 1).
Click here to see answer by jim_thompson5910(28598)

Question 270437: what is (1/3)-root 3 over 3
Click here to see answer by persian52(158)

Question 271019: how do you solve [2x^3y^-3z^5][4x^-3y^-2z^-1]
Click here to see answer by stanbon(57377)

Question 270943: Find a formula to describe the amount of money in an account that started with $50 and and increases at a compound interest of 4.5% per year after t number of years
Click here to see answer by rfer(12666)

Question 271061: Give the exact value of theta in degrees rounded to the nearest tenth if sin theta=.3 and 90
Click here to see answer by Alan3354(30993)

Question 271498: trying to help my son but it has been 30 years for me doing these.

Click here to see answer by Edwin McCravy(8909)

Question 271794: A wheel with a 38- inch radius is marked at two points on the rim. The distance between the marks along the wheel is found to be inches. What is the angle (to the nearest tenth of a degree) between the radii to the two marks?
Click here to see answer by ankor@dixie-net.com(15659)

Question 271789: Approximate the length by finding the necessary arc length.
A television tower 440m high subtends an angle of 5degrees 50'. How far away is the tower?

Click here to see answer by Theo(3464)

Question 271791: Solve the problem. Round answer to 2 decimal places
What is the difference in area covered by a single 10-inch windshield wiper operating with a central angle of 126degrees compared to a pair of 3-inch wipers operating together each having a central angle of 106degrees?

Click here to see answer by ankor@dixie-net.com(15659)

Question 272182: need help on 2 problems with the directions- find all solutions of the equation in the interval (0,2pie) algebraically.
1. cosx + sinxtanx = 2
2. secxcscx = 2cscx
Click here to see answer by stanbon(57377)

Question 272243: Find the missing sides and angles
e=33
g=38
E=60
Click here to see answer by Alan3354(30993)

Question 272240: find the exact value p(5,4)terminal side

Click here to see answer by Alan3354(30993)

Question 273275: What is the answer if the hypotenuse = 30 feet / sine(7.5 degrees)?
Click here to see answer by stanbon(57377)

Question 273301:
4x +3y = -6
Could someone help me solve?
Click here to see answer by Alan3354(30993)

Question 273296:
Given f(x) = -x + 5 and g(x) = x^2 +2x +8
Find the composite function.
I have no idea how to do this. Could someone please explain?
Click here to see answer by Tobiasz(54)

Question 273300: Find the midpoint of the segment with endpoints (7,6) and (5, -2)

Click here to see answer by scott8148(6628)

Question 274137:
n^2 + 4n +4 =0
Solve.
I am so lost. can someone help me?
Click here to see answer by richwmiller(9143)

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