Question

Is the right step to solve after changing sin2A=1/2 to change it to 2sinAcosA=1/2?

Answer 1

nope. there wont be much point to that. you need to take the arcsin of both sides

Answer 2

does that make sense?

Answer 3

Yes! Hold on, let me solve it to see if I got the right answer.

Answer 4

sure :D

Answer 5

Once I get to sin2A=30 do I just divide by 2 so sinA=15?

Answer 6

dont you mean 2A = 30?

Answer 7

if you take the arcsin of sin 2A the result is 2A

Answer 8

oh yes, i forgot to apply to inverse to the sin

Answer 9

so A=15

Answer 10

yup

Answer 11

Thank you!

Answer 12

welcome ^_^