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Trigonometry
The value of tan 4\(^{\circ}\).tan 43\(^{\circ}\).tan 47 \(^{\circ}\).tan 86 \(^{\circ}\) is
A) 2
B) 3
C) 1
D) 4
Correct Answer:
C) 1
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>> Elementary Mathematics
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1). Consider the following equations
\( \Large cosec^{2}x+sec^{2}x=cosec^{2}x \ sec^{2}x \)
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