Question

if sin A = cos A then value of tan square A + 5 =​

Answer 1

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sin A = cos A when A= 45°

so

2 tan^2 A - 2 sec^ 2 A +5

2(tan ^ 2 45° ) - 2 sec^2 45° +5

2(1)-2(√2)^2 + 5

2 - 2(2) +5

2-4+5

-2+5

=3

hope this helps you mate....