Question

help me solve this?

Answer 1

do u have choices

Answer 2

9sin(theta)
9cos(theta)
9tan(theta)
9csc(theta)
9sec(theta)

Answer 3

\[x=9\sin \theta\]
\[\sqrt{81-x ^{2}}=\sqrt{81-81\sin ^{2}\theta} =9\sqrt{1-\sin ^{2}\theta}=9\sqrt{\cos ^{2}\theta }\]
\[=9\cos \theta \]

Answer 4

b

Answer 5

yes you are correct.