Question

find the sin A and cos A. write your ans as a fraction and as decimals rounded to four decimal places

Answer 1

so your reference angle is A



\[Sin A =\frac{opp}{hyp}....and..cosA =\frac{adj}{hyp}\]

\[\sin(A) = \frac{\sqrt{11}}{6}\]

and

\[\cos(A) = \frac{5}{6}\]

hope this helps