Saturday

January 31, 2015

January 31, 2015

Posted by **claire** on Thursday, February 10, 2011 at 9:30pm.

- trig -
**MathMate**, Thursday, February 10, 2011 at 11:42pm2sinx-1=cscx

2sin(x)-1 = 1/sin(x)

2sin²(x)-sin(x)-1=0

(2sin(x)+1)(sin(x)-1)=0

sin(x)=-1/2 or sin(x)=1

can you take it from here?

Note that sin(x) is positive in the first and second quadrants.

**Answer this Question**

**Related Questions**

trig - express this in sinx (1/ cscx + cotx )+ (1/cscx- cotx) i got 2sinx is ...

trig - Solve exactly over the indicated interval: 2sinx+cscx=3, 0<theta<...

Precalculus/Trig - I can't seem to prove these trig identities and would really ...

trig - Find a numerical value of one trigonometric function of x if secxcotx=4 A...

Trig - Verify that (secx/sinx)*(cotx/cscx)=cscx is an identity. (x=theta BTW)

trig - cscx+1/cscx cosx = secx+tanx

trig - I don't know to find the derivative of the following trig functions. ...

trig - I don't know to find the derivative of the following trig functions. ...

Precalculus - Rewrite 2sinx/(cotx+cscx) as an expression that doesn't involve a ...

Calculus - integral of cscx^(2/3)(cot^3)x i know that cot^2x is csc^2(x)-1, but ...