Do these questions without using LH or expansion.
Why "without" using LH or expansion ?
Any problem with these methods ?
Yeah these makes the questions easy making our mind not able to manipulate tough question which you wouldn't be able to do using LH or expansion.
Without LH or taylor expansion.
Try 2nd one @viraj
Please send the solution of 2nd one using lh
Differentiate it bro twice. That's the thing we can do if LH is applied ...