Question

Question #93493

Answer 1

`sec^2x/tan^2x+4=5+cot^2x`

Explanation:

`sec^2x/tan^2x+4=1/cos^2x*cot^2x+4=1/cancel(cos^2x)*cancel(cos^2x)/sin^2x+4=`
`=(sin^2x+cos^2x)/sin^2x+4=5+cot^2x`