Question

request you to ans this question​

Answer 1

$here \: is \: ur \: answer$

We have,

9sec²A-9tan²A

Let r=9sec²A-9tan²A

r=9(sec²A-tan²A)

We know that,

• sec²A-tan²A

Therefore,

r=9×1=9

Hence,9 is the answer