Question

how would you solve sin2x=0.5?

Answer 1

sin(2x)=.5
2x=arcsin(.5)
x = arcsin(.5)/2

Answer 2

No but without a calculator?

Answer 3

That is without a calculator.

Answer 4

but how would you find the arcsin of .5/2?

Answer 5

the actual number... i would use newton approximation

Answer 6

lol. im only in precal -_- sorry i dont know about that

Answer 7

sin(30) = 1/2

30 = 2x

x = 60

Answer 8

x also = 120

Answer 9

....make that 15 lol

Answer 10

and 180-15

Answer 11

sin(x)=1/2
x = pi/6

sin(2x)=.5
x = pi/3

Answer 12

pi/12, sorry

Answer 13

wait wait wait hold on. Wouldnt x=15. Since sin of 30=.5? And sin of 2(15)=.5?

Answer 14

In degrees it would be 15, in radians, pi/12

Answer 15

ahhhhhh. oh ok. See now i know what im doing. bcuz at first i didnt even understand what the problem was asking me to find out.

Answer 16

Thank you thank you. :)