## anonymous one year ago Given sin(x)=-3/5 and x is in quadrant 3, what is the value of tan(x/2)?

1. anonymous

draw a triangle to find the third side, or remember the mother of all right triangles 3- 4 - 5

2. anonymous

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3. anonymous

then use the half angle formula to find $\tan(\frac{x}{2})$

4. anonymous

how do you use the half angle formula

5. anonymous

idk look it up

6. anonymous
7. anonymous

tan(x/2) = sinx/(1+cosx) sinx = -3/5 and cos -4/5 Substitute find tan x/2 Source: mathskey.com

8. anonymous

9. anonymous

correct

10. anonymous

thx for the help!!!