Question

how do I verify sin^2 (pi/2 -x) =tanx

Answer 1

Can it be solved using a Ti84 Calculator?

Answer 2

You can use a scientific calculator.

Answer 3

check your statement.

Answer 4

Thanks. yes, I typed the problem wrong. it should be sin^2(pi/2-x) +sin^2x=1

Answer 5

\[2\sin ^2\left( \frac{ \pi }{ 2 }-x \right)=1-\cos 2\left( \frac{ \pi }{ 2 }-x \right)=1-\cos \left( \pi-2 x \right)=1+\cos 2 x\]
\[=2 \cos ^2x,\sin ^2\left( \frac{ \pi }{ 2 }-x \right)=\cos ^2x\]
solve further.