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यदि lim(x to0) (x(1+acos x)-b sin x)/(x^...

यदि `lim_(x to0) (x(1+acos x)-b sin x)/(x^(3)) =1 ,`हो , तो

A

`a=5/2`

B

`a=-5/2`

C

`b=3/2`

D

`b = -3/2 `

लिखित उत्तर

Verified by Experts

The correct Answer is:
B, D
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