NCERT Class 12-Mathematics: Chapter – 5 Continuity and Differentiability Part 15 (For CBSE, ICSE, IAS, NET, NRA 2022)

Get unlimited access to the best preparation resource for CBSE/Class-12 : get questions, notes, tests, video lectures and more- for all subjects of CBSE/Class-12.

Question 47:

Answer:

Question 48:

Answer:

Question 49:

Answer:

Now ,

Taking on both sides to get,

For

Taking log on both sides we get,

Differentiating ,

Question 50:

If t

Answer:

And

Hence proved.

Question 51:

If , , find at .

Answer