Question

sec²55 - cot² 53= ?
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Answer 1

I think ur qn is wrong or has some error,

The correct qn is ...

sec^2 37-cot^2 53=?

BY the concept of complementary angles,

cot^53 is written as tan^2 37

So, sec^2 37- tan^2 37 ( Since, sec^2A=1+tan^2A

=> sec^2A-tan^2A=1)

= 1..