Question

sin(3x)=-0.7843

Answer 1

\[0 degrees \le x <360 degrees\]

Answer 2

Find 3x first

Answer 3

i took the inverse sin of -.07843=-51.655 not exactly sure wat to do next

Answer 4

If sin(3x)=-0.7843, what's the general formula for the value of 3x?

Answer 5

not sure

Answer 6

What's the period of sine?

Answer 7

Other than that, the formula \(\sin(180^\circ-x)=\sin x\) may help you.

Answer 8

sin(3x) = -0.7843

arcsin( sin(3x) ) = arcsin( -0.7843 )
3x = arcsin( -0.7843 )
x = 1/3 arcsin( -0.7843 )

Answer 9

you found arcsin(-0.7843) = -51.655°

to get x, just divide this number by three