1.

`lim_(xrarr0)(x^(2)cosx)/(1-cosx)` is equal toA. 2B. `3/2`C. `-3/2`D. 1

Answer» Correct Answer - a
Given, `lim_(xto0)(x^(2)cosx)/(1-cosx)` `[therefore 1-cosx=2sin^(2)((x)/2)]`
`=2lim_(xto0)(x/2)^(2)/(sin^(2)(x/2))lim_(xto0)cosx=2.1=2`


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