Question

Prove 1- tan square theta / cot square theta-1= tansquare theta

Answer 1

Answer:

Step-by-step explanation:

1- tan^2 A / Cot^2 A -1 = tan^2 A

[1- (sin^2 A/ cos^2 A)]/[ (cos^2 A/ sin^2 A)-1]

[(cos^2 A- sin^2 A)/cos^2 A] / [(cos^2 A- sin^2 A)/ sin^2 A]

[cos^2 A- sin^2 A)/cos^2 A ]* [sin^2 A/(cos^2 A- sin^2 A)]

[sin^2 A/ cos^2 A]

tan^2 A

proof