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If 16Cr = 16C(2r+1) then the vaue of r i...

If 16C_r = 16C_(2r+1) then the vaue of r is

A

a)6

B

b)5

C

c)4

D

d)3

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UNITED BOOK HOUSE-ANNUAL EXAMINATION QUESTION PAPERS 2017-EXERCISE
  1. If omegabe the imaginary cube root of 1 ,then the value of (3+omega+3...

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  2. If the differnce between the roots of the quadratic equation x^2+px+8=...

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  3. If 16Cr = 16C(2r+1) then the vaue of r is

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  4. Find the coordinates of the focus , axis, the question of the directri...

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  5. The co-ordinattes of B and C of the trianglle ABC are (5,2,8) and (2,-...

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  6. The value of Lt(xrarr0)(e^x-e^-x)/xis

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  7. if y=cos^2(x/2)the value of dy/dx is

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  8. If P(AcapB)=5/13,then the value of P(A^c cup B^c)is

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  9. If the variance of a distribution is 4 coefficient of variation is 5%,...

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  10. A relation R is defined from A={1,2,3,4,5} to B={1,2,3}in such a way t...

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  11. If (x+y) prop (x-y) , then show that (x^(3) +y^(3)) prop (x^(3)-y^(3))...

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  12. Show that 1/(sin10^@)-sqrt3/(cos10^@)=4

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  13. Find the value of 2ac sin ((A-B+C)/2)for /\ABC

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  14. If z be a complex number and |z+5|le6,then find the maximum and minimu...

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  15. If ^nPr=504and ^nCr=84,then find value of n and r.

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  16. Find the coefficinet of 1/x^2in the expansion of (2x^3-1/x^2)^6.

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  17. If P-th term of an arithmetic progression be Q and Q-th term be P.then...

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  18. If the perimeter of the triangle formed by the straight line 4x+3y+k=0...

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  19. Find the co-ordinates of the point lies on the plane YOZ which is equi...

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  20. Evaluate :lim(xrarr0)(cos5x-cos7x)/(cosx-cos5x)

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