Question

solve: 3sin(2x) - 1 = 1

Answer 1

do you want the answer in radians or degrees?

Answer 2

degrees

Answer 3

approximately 21 degrees

Answer 4

add 1 to both sides and you get\[3\sin 2x=2\]

Answer 5

divide each side by 3 and you get \[\sin2x=\frac{ 2 }{ 3 }\]

Answer 6

yes i understand that

Answer 7

do inverse sin on both sides and you get \[2x \approx 42\]

Answer 8

the angle is 2x not 2x -1

Answer 9

then divide both sides by 2 and you get x=21

Answer 10

well here is the question i have

Answer 11

yes

Answer 12

i always thought this was ok, but does it work all the time when you need to get the angle out so that you can solve for x

Answer 13

you always thought what was ok

Answer 14

meaning i thought inverse will always work but i wanted to be sure

Answer 15

yeah

Answer 16

ok thank you for your help.

Answer 17

no problem