Monday

October 20, 2014

October 20, 2014

Posted by **bob** on Wednesday, March 16, 2011 at 5:01pm.

- Trig?? -
**Writeacher**, Wednesday, March 16, 2011 at 5:23pmPlease type your

__subject__in the**School Subject**box. Any other words,__including obscure abbreviations__, are likely to delay responses from a teacher who knows that subject well.

- trip -
**bobpursley**, Wednesday, March 16, 2011 at 5:58pmsin2x= 2sinxcosx

cosx(2sinx+1)=0

cosx=0 so x=0, PI, 2PI

sinx=-1/2, so x=3PI/2 check that.

**Answer this Question**

**Related Questions**

identities trig? - find all solutions to the equation in the interval [0,2pie] ...

Trigonometry - Use the half-angle identities to find all solutions on the ...

Trigonometry - Use the half-angle identities to find all solutions on the ...

Trig - Find all the solutions in the interval [0,2pi). 2sin2x - sqrt(2) = 0 ...

CACULUS - THE VALUES OF X THAT ARE SOLUTIONS TO THE EQUATION [COSX]^2 = SIN2X IN...

Precalculus - Please help!!!!!!!!!!! Find all solutions to the equation in the ...

math-trig - Use the double angle identities to find sin2x if sinx= 1/square of ...

trig - Find ALL solutions to the equation on the interval [0, 2pie]: 2sin(1/2X...

pre-calc helpppp - Simplify the expression by using a Double-Angle Formula or a ...

Pre-Calc Help!!! - Simplify the expression by using a Double-Angle Formula or a ...