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The value of tan 15^(@) tan20^(@) tan 70...

The value of `tan 15^(@) tan20^(@) tan 70^(@) tan75` is

A

-1

B

2

C

0

D

1

Text Solution

Verified by Experts

The correct Answer is:
D
`tantheta=cot(90-theta)and tantheta*cottheta=1`
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