Question

Prove this ......
---》2 cos ^2theta (1+tan^2 theta ) =2​

Answer 1

Step-by-step explanation:

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

= 2 cos ^2theta (sec^2 theta)

= 2

Answer 2

Answer:

proved

Step-by-step explanation:

1 + tan ^2 theta = sec^2 theta

and

cos^2 × sec ^2 = 1

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