Question

If sin30degree = and cos6o degree = y, then x² + y² is

Answer 1

≡QUESTION≡

If sin 30° = x and cos 60°  = y, then x² + y² is?

║⊕ANSWER⊕║

SOMETHING YOU NEED TO KNOW FIRST

Sin 30° = $\frac{1}{2}$

Cos 60° =  $\frac{1}{2}$

                                                                 

$x^{2} + y^{2} = (sin 30)^{2} + (cos 60)^{2} \\= (\frac{1}{2})^{2} + (\frac{1}{2})^{2}\\= \frac{1}{4} + \frac{1}{4} \\= \frac{2}{4} \\= \frac{1}{2}$

                                                                   

$\frac{1}{2}$ IS YOUR ANSWER !!!!!