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Which one of the following is correct ?

Question

Which one of the following is correct ?

A

se c^{2} α = 1 - t a n^{2} α

B

s i n^{2} α = 1 + co s^{2} α

C

t an α co t α = 1

D

None of these

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Text solutionVerified

Only statement

(C)

is correct.

\Rightarrow tan α cot α = 1

\Rightarrow L . H . S = tan α cot α

= \frac{1}{cot α} cot α

= 1 = R . H . S .

Hence, the answer is

tan α cot α = 1.

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Question Text	Which one of the following is correct ?
Answer Type	Text solution:1
Upvotes	150