320
240
-320
-240
Correct answer is B
(1−2x)6=6C0(16)+6C1(15)(−2x1)+6C2(14)(−2x2)+6C3(13)(−2x3)+6C4(12)(−2x4)+...
The coefficient ofx4=15×16=240
A binary operation * is defined on the set of real numbers, R, by P * q = q2−p22pq...
The area of a sector of a circle is 3cm2. If the sector subtends an angle of 1.5 radians at t...
Find the coefficient of x2in the binomial expansion of (x+2x2)5...
Differentiate 5x3+x2x, x ≠ 0 with respect to x....
In how many ways can the letters of the word 'ELECTIVE' be arranged? ...
Using the binomial expansion (1+x)6=1+6x+15x2+20x3+15x4+6x5+x6, ...