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Chapter 5 Continuity and Differentiability Ex 5.7 Solutions

Question - 11 : - If findin terms of y alone.

Answer - 11 : - It is given that,

Then,

Question - 12 : - If, show that

Answer - 12 : - It is given that,

Then,

Hence, proved.

Question - 13 : - Ifshow that

Answer - 13 : - It is given that,

Then,

Hence, proved.

Question - 14 : - If, show that

Answer - 14 : - It is given that,.

Then,

Hence, proved.

Question - 15 : - If, show that

Answer - 15 : - The given relationship is

Taking logarithm on both thesides, we obtain

Differentiating this relationshipwith respect to x, we obtain

Hence, proved.

Question - 16 : - If, show that

Answer - 16 : - The given relationship is

Then,

Hence, proved.

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