Question

Prove that Cos²O(1 + tan²O) = 1.​

Answer 1

Step-by-step explanation:

1 + tan^2 theata = sec^2 theta

Putting the value

Cos ^2 theta × sec ^2 theta

Cos ^2 theta × ( 1 / cos ^2 theta)

= 1 = R. H. S

Answer 2

Answer:

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