31 Without using a calculator, compute the sine and cosine of 4 by using the reference angle. What is the reference angle? radians. In what quadrant is this angle? (answer 1, 2, 3, or 4) sin COS (Type sqrt(2) for v2 and sqrt(3) for v/3.)If d = 6 . then sin(0) = cos(0) = Give exact values. No decimals allowed! Example: Enter sqrt(2)/2 for 2 . With functions like sqrt, be sure to use function notation (parentheses). sqrt(2)/2 will work, but sqrt2/2 will not.Find an angle 0 with 0