Sunday

November 23, 2014

November 23, 2014

Posted by **Help STEVE!** on Wednesday, November 28, 2012 at 10:06am.

12/25

24/25

-12/25

-7/25

-24/25

- Shasha -
**Steve**, Wednesday, November 28, 2012 at 10:15amsin2θ = 2sinθcosθ

in QIV, if cosθ = 3/5, sinθ = -4/5

so, sin2θ = 2(-4/5)(3/5) = -24/25

**Answer this Question**

**Related Questions**

Calculus - I wanted to confirm that I solved these problems correctly (we had to...

calculus - What is the exact value of sin(2 theta) if cos (theta)=3/5 and (theta...

Trig - 1. Establish the identity: sin(theta+3pi/2)=-cos(theta) 2. Find the exact...

Algebra II - Multiple Choice Which expression is NOT equivalent to 1? (theta) ...

Algebra II - Multiple Choice (theta) means the symbol 0 with the dash in it. 1.)...

Math - angle theta is in the standard position and 0'=<theta=<180'. If cos...

Precalculus check answers help! - 1.) Find an expression equivalent to sec theta...

Precalculus check answers help! - 1.) Find an expression equivalent to sec theta...

Trig - Find the exact value of sin2(theta) if cos(theta) = -sqrt 5/3 and 180 <...

trig - If sin theta is equal to 5/13 and theta is an angle in quadrant II find ...