defence exam Coast Guard Navik GD (General Duty) 02/2025 Mock Test Series Mathematics Binomial Theorem Special Terms of Binomial Expansion
If the coefficient of x in the expansion of \(\rm \left(x^2+\frac{\lambda}{x}\right)^{5}\) is 270, then the value of λ is:
1
1
2
-1
3
3
4
-3