Question

find the value of tan90°. using formula tan 2A.... Pls answer it

Answer 1

Tan90=tan2×45
=2tan45÷1+tan2(45)
=2×1÷(2)
=2÷2
=1. its your answer.

Answer 2

tan(2A) = 2tan(A)/1-tan^2(A)

tan(90°) = tan(2*45°) = 2tan(45)/1-tan^2(45)
tan(90°) =2x1 /1 - 1 = 2/0 = <><> or not defined.