Question

The value of (cos2 45° + cot2 45°) is​

Answer 1

Answer:

First write ta values of cos45 & cot45

Cos45 = 1/sqrt2

Cot45 = 1

So we need to find;

(1/sqrt2)^2 + 1^2

==> 1/2 + 1

==> 3/2

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