Question

tell this question
proper explanation also .​

Answer 1

Step-by-step explanation:

1. -1=Tan^©-Sec^2©

1. Then take sec©+tan© common

1. Therefore:(1+tan©-sec©) gets cancelled out..

1. Remaining tan©+sec©

tan©=sin©/cos© and sec©=1/cos©

1. (sin©/cos©)+(1/cos©)={1+sin©}/cos©