trig

posted by .

1st-the reason i keep change my name because some of my friends are using my computer by their own name to asked questions. we are having a hard time solving each trig problems
2nd- if sin theta=0.6 and 90 degree <theta < 180 degree, find the exact value of sin 2 theta.
a.-0.6
b.-0.96
c.0.96
d. .28

• trig -

sin theta=.6 >>> theta= arc sin .6=36.86or 90-36.86

sin106=.96

Similar Questions

1. math (trig)

Im having problems solving this equation: 2sin(x) = cos(x) + 2 I keep getting an imaginary number..:/
2. Trig Identities

Please help...I'm not understanding trig identities and how to manipulate and express these two problems in their associated functions. Thanks a)Express as a function of cos (theta) 2 sin^2(theta) - 1 b)Express as a function of sin …
3. TRIG MATH

If sin theta= -7/8, then the value of 1/cot theta in the interval 3pi/2<theta is?
4. trig 26

simplify to a constant or trig func. 1. sec ²u-tan ²u/cos ²v+sin ²v change expression to only sines and cosines. then to a basic trig function. 2. sin(theta) - tan(theta)*cos(theta)+ cos(pi/2 - theta) 3. (sec y - tan y)(sec y + …
5. trig

Find the exact values of the other trig functions of theta given sec theta=7 and sin theta is less than 0.
6. Trig

Find values of all six trig functions if sin(theta)= 4/5 and theta is in the second quadrant.
7. Trig.

I'm trouble solving for theta. Any help is appreciated. 0.73377324 = sin(theta)/cos(theta)
8. Trig

Find the exact values of sin 2 theta, cos 2 theta and tan 2thea using the double angle formula sin theta = 3/4 , pi/2 < theta < pi
9. Trig

Simplify each expression using fundamental identities. 1. Sin theta cot theta 2. 1-sin^2 theta / cos theta
10. trig

Hi there! I NEED SERIOUS HELP, PLEASE!!! i have such a hard time with verifying identities! The question is: [(sin(theta/2)) / csc(theta/2)] + [(cos (theta/2) / sec(theta/2)] = 1 I have a few ideas on how to solve this, but am mainly …

More Similar Questions