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Ratio of middle term in (px^3 +(q)/(x^2)...

Ratio of middle term in `(px^3 +(q)/(x^2))^15` is

A

`p:qx^2`

B

`px^5 : q`

C

`px^2 :q`

D

`p : qx^5`

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • Middle term in the expansion of (2x-(3)/(x))^15 is

    A
    `-^15 C_7 2^8 3^7 x`
    B
    `""^15 C_7 2^8 3^7 x`
    C
    `-^15 C_6 2^8 x`
    D
    `""^15 C_6 2^8 3^7 x`

  • If r^(th) term is middle term in (x^2 - (1)/(2x))^20 then (r+ 3)^(th) term is

    A
    `(""^20C_7 x)/(2^13)`
    B
    `-( (""^20C_5x)/(4^13))`
    C
    `- ((""^20C_7x)/(2^13))`
    D
    `- ((""^20C_14x)/(4^13))`

  • The middle term of (x+(1)/(x))^(2n) is

    A
    `(1.3.5….(2n-1)2^n)/(n!)`
    B
    `((2n)!)/(n!)`
    C
    `((3n)!)/((n!)^2)`
    D
    `(1.3.5…(2n-1))/((n!)^2)`

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