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In the expansion of (a+b)^15.the co-effi...

In the expansion of `(a+b)^15`.the co-efficient of`a^8b^7`is

A

a)``8C_7`

B

b)``15C_8`

C

c)``15C_7`

D

d)``15C_9`

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UNITED BOOK HOUSE-MODEL QUESTION PAPERS-SET 10-EXERCISE
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  2. The value of i^9+1/i^5is

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  3. In the expansion of (a+b)^15.the co-efficient ofa^8b^7is

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  4. In an A.P., the 1st term, last term and the sum of all term are 3, 39...

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  5. The equation. y^2+2ax+2by+c=0represent the conic

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  6. The perpendicular distance from (2, -1) to the equation 12x - 5y= 3 is

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  7. The domen of the function f(x) = log | log x I is

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  8. The value of lim(xrarr0)(1-cosx)/xis

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  9. A coin is tossed several times.If we get ‘tail’ in 1st three times.the...

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  10. In a room, every body handshake each other. If the number of handshake...

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  11. Using set operation, prove that 3 + 4 = 7.

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  12. Find the domain of defination of the function f(x)=(x+3)/(sqrt(3-2x-x^...

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  15. Find the argument of (-3 - 3i).

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  16. In how many way can give 4 prizes qut of 10 students for which no one ...

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  17. In the expansion of(x^3-1/x^2)^15,find the constant term.

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  18. In an infinite G.P. series sn/soo=1/3,find its common ratio, [simbols ...

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  19. Find the ratio in- which the straight line 3x + 4y = 21 divides the li...

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  20. The cor-ordinate of three consecutive verties of a parallelogram ar (3...

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