Posted by **lindsay** on Tuesday, April 2, 2013 at 2:56pm.

find the exact value of [sec(-30 degrees)- cot 120 degrees]/1-cosec^2(45 degrees)

Find the exact value of [sin^2(355 degrees) + cos^2 (355 degrees)]/ tan^2 (30 degrees)

- math -
**Anonymous**, Tuesday, April 2, 2013 at 6:21pm
sin^2 + cos^2 = 1, so you have

1/tan^2(30) = 1/3

for the other, plug in the values. recall that 1-csc^2 = -cot^2, so the bottom is just -1

## Answer this Question

## Related Questions

- Algebra II - Multiple Choice (theta) means the symbol 0 with the dash in it. 1.)...
- Math - 1. Find the value of Sin^-1(-1/2) a. -30 degrees b. 30 degrees c. 150 ...
- Trigonometry - Please review and tell me if i did something wrong. Find the ...
- math - Find the exact value of 1. tan 75 degrees 2. Cos 15 degrees 3. Sin 105 ...
- Calculus - Find the exact values of the following. cos 270 degrees = 90 degrees...
- Trig - What is the exact value of cos 40 degrees cos 50 degrees minus sin 40 ...
- Trig hep, please? Thank you! - 1. Find the exact value of sin(195(degrees)) 2. ...
- trig math 30 - Find the exact value of cos 8 degrees cos 38 degrees + sin 8 ...
- Trigonometry - use the appropriate trig identity (sum and difference, half angle...
- math - 1)In triangle ABC, C=60 degrees, a=12, and b=5. Find c. A)109.0 B)10.4 C)...

More Related Questions