Monday

October 20, 2014

October 20, 2014

Posted by **-** on Wednesday, April 21, 2010 at 7:11pm.

1. 2sin(2x)+cos(x)=0

2. cos(2x)=-2sin(x)

3. tan(x)=2sin(x)

**Answer this Question**

**Related Questions**

trig - 2sin(x)cos(x)+cos(x)=0 I'm looking for exact value solutions in [0, 3&#...

Precal - I do not understand how to do this problem ((sin^3 A + cos^3 A)/(sin A...

URGENT - Trigonometry - Identities and Proofs - Okay, today, I find myself ...

trigonometry (please double check this) - Solve the following trig equations. ...

math (trig) - Find sin(x/2) if sin(x)= -0.4 and 3pi/2 < or equal to (x) < ...

Ap Calc AB - Determine (dy/dx) using implicit differentiation. cos(X^2Y^2) = x I...

Math - Prove each identity: a) 1-cos^2x=tan^2xcos^2x b) cos^2x + 2sin^2x-1 = sin...

Math - Trig - Double Angles - Prove: sin2x / 1 - cos2x = cotx My Attempt: LS: = ...

Precalculus - Verify the identities. Cos^2x - sin^2x = 2cos^2x - 1 When ...

Math (trigonometry) - How do you solve this trig identity problem without ...