If the coefficient of x^(7)in [ax^(2) + ...

If the coefficient of `x^(7)`in `[ax^(2) + (1/bx)]^(11)` equals the coefficient of `x^(-7)`in `[ax - (1/(bx^(2)))]^(11)` then a and b satisfy the relation

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If the coefficient of x^7in[a x^2-(1/(b x^2))]^(11) equal the coefficient of x^(-7) in satisfy the [a x-(1/(b x^2))]^(11), then a and b satisfy the relation a. a+b=1 b. a-b=1 c. ab=1 d. a/b=1

If the coefficient of x^7in[a x^2-(1/(b x^2))]^(11) equal the coefficient of x^(-7) in satisfy the [a x-(1/(b x^2))]^(11),then a a n d b satisfy the relation a+b=1 b. a-b=1 c. b=1 d. a/b=1

the coefficient of x^(7) in (ax - b^(-1) x^(-2))^(11) is

If the coefficient of x^10 in (ax^2 + (1)/(bx))^11 is equal to the coefficient of x^(-10) in (ax - (1)/(bx^2))^11 then show that ab = -1

If the coefficient of x^7 in (ax^2+1/(bx))^11 is equal to the coefficient of x^-7 in (ax-1/(bx^2))^11 then

Find the coefficient of x^7 in ( ax^(2) + (1)/( bx) )^(11) and the coefficient of x^(-7) in (ax + (1)/(bx^(2) ))^(11) . If these coefficients are equal, find the relation between a and b .

Find (a) the coefficient of x^7 in the epansion of (ax^2+1/(bx))^11 (b) The coefficient of x^(-7) in the expansion of (ax^2+1/(bx))^11 Also , find the relation between a and b, so that these coefficients are equal .

Find the coefficient of x^(7) in the expansion of (ax^(2) + (1)/(bx))^(11) . (ii) the coefficient of x^(-7) in the expansion of (ax + (1)/(bx^2))^(11) . Also , find the relation between a and b , so that these coefficients are equal .

Find the coefficient of x^-7 in the expansion of (2x-1/(3x^2))^11 .

The coefficient of x^4 in (1+x+x^2+x^3)^11 is

AAKASH INSTITUTE ENGLISH-BINOMIAL THEOREM-Assignment (section-A)

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The middle term in the expansioin of (1+x)^(2n) is
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The number of non -zeroes terms in the expansion of (sqrt(7)+1)^(75)-(...
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The number of terms in the expansion if (a+b+c)^(12) is
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Given the integers r gt 1, n gt 2 and coefficients of (3r) th and (r+2...
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If (r+1)^(th) term in the expasnion of (a^(3)/3-2/a^(2))^(10) contains...
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