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The value of ordered pair (a,b) such tha...

The value of ordered pair (a,b) such that `lim _(xto0) (x (1+ a cos x ) -b sin x )/( x ^(3))=1,` is:

A

`(-(5)/(2), -(3)/(2))`

B

`((5)/(2), (3)/(2))`

C

`(-(5)/(2),( 3)/(2))`

D

`((5 )/(2),(3)/(2))`

Text Solution

Verified by Experts

The correct Answer is:
A
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