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underset(x to 0)"Lt" (3 sin x^(@)-sin 3x...

`underset(x to 0)"Lt" (3 sin x^(@)-sin 3x^(@))/(x^(3))=`

A

`(pi)/(180)`

B

`4((pi)/(180))^(3)`

C

`(pi)/(180)`

D

`(pi)/(90)`

Text Solution

Verified by Experts

The correct Answer is:
B
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