Homework Help: trigonometry

Posted by michelle on Tuesday, May 1, 2007 at 10:21pm.

Find the exact value of each expression(no calculator):

1) sin^2(30degrees) + 1/sec^2(20degrees)

2) sec(50degrees)*cos(50degrees)

No one has answered this question yet.

Answer this Question

Related Questions

trigonometry - Using exact values,find the value of: (A=30degrees) sin 2A + tan ...
Trigonometry - ``(please show the steps to how the problems were solved) Using ...
Trigonometry - 1.Solve tan^2x + tan x – 1 = 0 for the principal value(s) to...
Precalculus check answers help! - 1.) Find an expression equivalent to sec theta...
Precalculus check answers help! - 1.) Find an expression equivalent to sec theta...
Alg2/Trig - Find the exact value of the trigonometric function given that sin u...
math - How would you establish this identity: (1+sec(beta))/(sec(beta))=(sin^2(...
Algebra 2/ Trigonometry - The expression 4 - cos² A is equivalent to 1)5 - ...
Integration - Intergrate ¡ì sec^3(x) dx could anybody please check ...
trigonometry hlp me - 6.Prove that tan y cos^2 y + sin^2y/sin y = cos y + sin &#...

For Further Reading

First Name:
School Subject:
Answer: