Question

How do you simplify `secxsin(pi/2-x)`?

Answer 1

Simplify: `sec x.sin (pi/2 - x)`

Ans: 1

Explanation:

Trig unit circle -->`sin (pi/2 - x) = cos x`
`sec x.sin (pi/2 - x) = (1/cos x)(cos x) = 1`