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Question

Match the terms having same value.

A
tan 47
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B
cot 73
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C
sin 52
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D
cos 26
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Solution

From complementary relation we have
sin θ =cos (90 θ) and vice versa
tan θ =cot (90 θ) and vice versa
Hence,
tan 17 =cot (90 17) = cot 73
Similarly,
cot 43 = tan 47
cos 38 = sin 52
sin 64 = cos 26

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