Friday

August 1, 2014

August 1, 2014

Posted by **Sarah** on Wednesday, May 26, 2010 at 9:33pm.

- trig -
**Reiny**, Wednesday, May 26, 2010 at 9:35pmLS

= (tanA)(sin2A)

= sinA/cosA(2sinAcosA)

= 2sin^2 A

= RS

**Related Questions**

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

trig - prove that: sinC+sinD =2sin((C+D)/2)*cos((C-D)/2)

trig - Prove the identity. (must work with left side) (1-2sin(x)^2)=(cos(x)^2)

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

Math - Prove :cosx-cosy= -2sin(x+y/2)sin(x-y/2) Prove: 2cot-2tanx= 4-2sec^2x / ...

trig - 1. 3cot^2 (x) - 1 = 0 My answer: pi/3, 2pi/3, 4pi/3, 5pi/3 2. 4cos^2 (x...

trig - What is the shift along x of the following trig functions? y = (3sinx/2...

trig - What kind of reflections are the following trig functions? y = 3cos(x-1) ...

Math - Solving Trig Equations - Solve each equation for 0 is less than and equal...

TRIG.............. - Q.1 Prove the following identities:- (i) tan^3x/1+tan^2x + ...