Question

sin(3theta) = -1 find the solution set.

I only got the first radian right. which was (pie/2)

Answer 1

sin = -1 when angle is 3pi/2 plus multiples of 2pi

3pi/2 + 2pi = 7pi/2 --->theta = 7pi/6

Answer 2

\[\text{lets see begin with breaking this up.}\\sin(3\theta)=sin(\theta +2\theta) \\sin(A+B)=sinAcosA+sinAcosB \\ proceed--->try \]

Answer 3

and dumbcow how did you get that method of doing multiples of 2

Answer 4

i dont think mebs method applies to your problem

Answer 5

yes keep adding 2pi to get more solutions

Answer 6

yea i noticed . it doesnt

Answer 7

but where did you get 2pie from. ?

Answer 8

thats the num of radians in a circle

Answer 9

hmmm... it is to tedious don't bother I was thinking of something else.

Answer 10

its alright mebs. And dumbcow thanks I figured it out.