Q. 34.6( 5 Votes )

Evaluate the following limits:


Answer :



Since the form is indeterminant



Method 1: factorization





Since a2-b2 = (a + b)(a-b)


Thus




= 32 + 32


= 18


Method 2:


By L hospital rule:


Differentiating numerator and denominator separately:





= 54


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