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^5C1+^5C2+^5C3+^5C4+^5C5 is equal to...

`^5C_1+^5C_2+^5C_3+^5C_4+^5C_5` is equal to

A

30

B

31

C

32

D

None of these

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JBD PUBLICATION-MODEL PAPER (1)-EXERCISE
  1. If f(x)=ax+b, where a and b are integers, f(-1)=-7 and f(2)=8, then a ...

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  2. sin^2 45^@-sin^2 30^@ is equal to:

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  3. ^5C1+^5C2+^5C3+^5C4+^5C5 is equal to

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  4. If g1, g2 are two G.M's between two numbers a and b, then (g1^2)/(g2)+...

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  5. The area of a triangle with vertices at (-4,-1), (1,2) and (4,-3) is:

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  6. The distance between the directrices of the ellipse x^2/4+y^2/9=1 is:

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  7. If y=(1+tanx)/(1-tanx), then value of (dy)/(dx) is:

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  8. If P(A)=P(B)=x and P(AcapB)=P(barAcapbarB)=1/3, then the value of x is...

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  9. Prove that: ((sin 7x + sin 5x) + (sin 9x + sin 3x))/((cos7x + cos5x) +...

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  10. Prove that: (cosx-cosy)^2 +(sinx-siny)^2=4 sin^2frac (x-y)(2)

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  11. Show that: 1+i^10+i^100+i^1000=2

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  12. Find the coefficients of x^(4) in the expansions of (2 - x + 3x^(2...

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  13. Show that the points (-1,2,1), (1,-2,5), (4,-7,8) and (2,-3,4) are ver...

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  14. Find out which of the following sentences are statements and which are...

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  15. Find out which of the following sentences are statements and which are...

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  16. Combine the following statements using "if and only if' p: if the sum ...

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  17. Combine the following statements using "if and only if' p: if the sum ...

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  18. Assume that P(A) = P(B). Show that A = B

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  19. Let A={1,2,3}, B={2,3,4} and C={4,5,6}.verify that: Axx(BcapC)=(AxxB)c...

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  20. Prove that : tan 4 theta= (4 tan theta(1-tan^2 theta)) /(1-6 tan^2 t...

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