Question

find the value of 1-tan^2 thita/1 +tan^2 thita ​

Answer 1

Answer:

what is the area and size of India in respect

Answer 2

Step by Step Explanation of Answer ✿

Using the identities: 1+tan2θ=sec2θ 1secθ=cosθ tanθ= sinθcosθ sin2θ=1−cos2θ 2cos2θ−1=cos2θ .

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