Mark the correct alternative in the following :
If in the expansion of 
, the coefficients of 
and 
terms are equal, then the value of r is
Given:
For (2r+3)th term; k=(2r+2)
For (r-1)th term; k=r-2
Coefficients of both terms are equal;
1
Mark the correct alternative in the following :
If in the expansion of , the coefficients of and terms are equal, then the value of r is
Given:
For (2r+3)th term; k=(2r+2)
For (r-1)th term; k=r-2
Coefficients of both terms are equal;