If the constant term in the expansion of \({\left( {\sqrt x - \frac{k} – McqOptions

MCQOPTIONS

1.	If the constant term in the expansion of \({\left( {\sqrt x - \frac{k}{{{x^2}}}} \right)^{10}}\) is 405, then what can be the values of k?
A.	±2
B.	±3
C.	±5
D.	±9
Answer» C. ±5

Discussion

No Comment Found

Related MCQs

If the constant term in the expansion of \({\left( {\sqrt x - \frac{k}{{{x^2}}}} \right)^{10}}\) is 405, then what can be the values of k?
If the coefficients of am and an in the expansion of (1 + a)m + n are α and β, then which one of the following is correct?
If the middle term in the expansion of \({\left( {{x^2} + \frac{1}{x}} \right)^{2n}}\) is 184756x10, then what is the value of n
If (1 + 2x - x2)6 = a0 + a1x + a2x2 + ... + a12x12, then what is a0 - a1 + a2 - a3 + a4 - ... + a12 equal to?
How many terms are there in the expansion of (1 + 2x + x2) 5 + (1 + 4y + 4y2) 5 ?
If some three consecutive coefficients in the binomial expansion of (x + 1)n in powers of x are in the ratio 2 : 15 : 70 then the average of these three coefficients is:
In the expansion of (1+ ax)n, the first three terms are respectively 1, 12x and 64x2. What is n equal to?
Let the coefficient of the middle term of the binomial expansion of (1 + x) 2n be α and those of two middle terms of the binomial expansion of (1 + x) 2n - 1 be β and γ. Which one of the following relations is correct?
Find the coefficient of x2 in the expansion of (3 + 2x)7.
In the expansion of (1 + x)50, the sum of the coefficients of odd powers of x is