Question

sin[cos^-1(2/3)] Find EXACT please

Answer 1

\[\Huge \dfrac{\sqrt{5}}{3}\]

Answer 2

sorry, i had the answer, would you mind showing how you came to that solution?

Answer 3

Let x be an unknown angle and set it equal to cos^-1(2/3).

2/3 = cos(x)

Now draw triangle.

Then use Pythagorean theorem to find the "?," then you should know what to do next.

Is this clear?

Answer 4

right on, thanks a lot mate =)

Answer 5

Glad I helped.