Sunday

April 20, 2014

April 20, 2014

Posted by **Jason** on Tuesday, April 28, 2009 at 1:33pm.

Use half-angle identity to find the exact value of cos165 degrees.

(-1/2) sqrt(2+sqrt(3))

Write the equation 2x+3y-5=0 in normal form.

(-2sqrt(13)/13)x- (3sqrt(13)/13)y+ (5 sqrt (13)/13) = 0

Find the distance between the lines with equations 3x-y=9 and y=3x-4.

sqrt (10)/2

**Related Questions**

Pre Cal. - 1. Use half-angle identity to find the exact value of cos165. MY ...

Math - 1.Write the equation 5x+y-2=0 in normal form. 5x+y-2=0 5x+y=2 (add two to...

Precalculus check answers help! - 1. Which expression is equivalent to cos ...

Math - How do you find a square root of a number that's not a perfect square? I'...

algebra - can someone tell me if i did the problem correct (solve by completing ...

Math/Calculus - Solve the initial-value problem. Am I using the wrong value for ...

Math - 1. Find the value of Sin^-1(-1/2) a. -30 degrees b. 30 degrees c. 150 ...

Trigonometry - use the appropriate trig identity (sum and difference, half angle...

Trig - Use a half-angle identity to find the exact value for sec(x/2) if sinx...

Calculus - I had this on a test: Use the half-angle formula to find the exact ...