Question

(1+tan^2 theta) (1-cos^2theta) =
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Answer 1

Answer:

tan²theta

Step-by-step explanation:

that will be your answer

Answer 2

Answer:

cos^2 theta

Step-by-step explanation:

=(1+tan^2theta)(1-cos^2theta)

=(sec^2theta)(sin^2theta) [1+tan^2theta= sec^2 theta]. [1-cos^2theta = sin^2 theta]

=sec^2theta*sin^2theta

=[cos^2 theta/ sin^2 theta ]* sin^2 theta

= cos^2 theta