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The number of ways in which n distinct o...

The number of ways in which n distinct objects can be put into two different boxes is:

A

2n

B

`n^2`

C

`2^n`

D

none of these

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JBD PUBLICATION-MODEL PAPER (12)-EXERCISE
  1. The value of sinpi/14 sin(3pi)/14 sin(5pi)/14 is equal to:

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  2. If z is purely real number such that Re(z)<0, then argument (z) is equ...

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  3. The number of ways in which n distinct objects can be put into two dif...

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  4. The G.M. between -2i and 8i is:

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  5. A line passes through the point (2,2) and is perpendicular to the lin...

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  6. The eccentricity of the hyperbola whose latus rectum is half of its tr...

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  7. underset(xrarr0)lim x/(tanx) is equal to:

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  8. If A and B are mutually exclusive events then:

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  9. Prove that : (tan (pi/4+x))/(tan (pi/4-x))= ((1+tanx)/(1-tanx))^2.

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  10. Prove the following: cos((3pi)/2+x)cos(2pi+x)[cot((3pi)/2-x)+cot(2pi+x...

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  11. Express: (-i)(2i)(-1/8i)^3 in the form of a+ib.

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  12. Find the fourth term from the end in the expansion of [x^3/2-2/x^3]^9.

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  13. Show that 9^(n+1) - 8n -9 is divisible by 64, whenever n is a positiv...

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  14. Find the lenghts of the medians of the triangle with vertices A(0,0,6)...

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

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

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  17. Find the component statement of the following and check whether they a...

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  18. Let A={a,b,c} and B={1,2,3}. Find the number of relations from A into ...

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  19. Show tha: cos6A=32cos^6A-48cos^4A+18cos^2A-1

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  20. 1^2+2^2+3^3+.....+n^2=(n(n+1)(2n+1))/(6)

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