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The value of tan1^@ tan 2^@ tan 3^@ ......

The value of `tan1^@ tan 2^@ tan 3^@ ... tan 89^@` is

A

1

B

0

C

`infty`

D

`1//2`

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The correct Answer is:
A
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MOTION-TRIGNOMETRIC RATIOS & IDENTITIES -Exercise 1
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