Question

Given that sinƟ = 2/3 and Π /2 13 years ago

Answer 1

\[sine = \frac{ opposite }{ hypotenuse }\]

Answer 2

\[cosine = \frac{ adjacent }{ hypotenuse }\]

Answer 3

Use the Pythagorean Theorem to find x. Then use the definition of cosine to find the cosine of the angle. Remember: cosine is negative in this quadrant.

Answer 4

Or you could say sin^2+cos^2=1

Answer 5

@Mertsj can you tell me where is the Ɵ angle in the picture??