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Let d(n) denote the number of divisors o...

Let d(n) denote the number of divisors of n inciuding 1 and iteslf . Then d(225), d(1125) and d(640) are

A

in AP

B

in HP

C

in GP

D

consecutive integers

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2015-MULTIPLE CHOICE QUESTIONS
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  2. Area of the region bonuded by y=|x|andy=-|x|+2 is

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  3. Let d(n) denote the number of divisors of n inciuding 1 and iteslf . T...

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  4. The trigonometric equation sin^(-1)x=2sin^(-1)2a has a real solution i...

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  5. If 2+i and sqrt5-2i are the roots of the equation (x^(2)+ax+b)(x^(2)+c...

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  7. The integrating factor of the differential equation (dy)/(dx)+(3x^(2)t...

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  8. If y=e^(-x)cos2x then which of the following differential equations is...

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  9. Let f(x) denote the fractional part of a real numbers x. Then the valu...

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  11. Let y=e^(x^(2)) and y=e^(x^(2))sinx be two given curves. Then the angl...

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  12. A person goes to office by car or scooter or bus or train, probability...

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  13. The value of int((x-2)dx)/({(x-2)^(2)(x+3)^(7)}^(1//3))is

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  14. In a triangle ABC, angleC=90^(@) , r and R are the in-radius and circu...

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  15. Let alpha,beta be two distinct roots of acostheta+bsintheta=c, where a...

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  16. For a matrix A((1,0,0),(2,1,0),(3,2,1)) if U(1),U(2) and U(3) are 3xx1...

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  17. Let f:RtoR be differentiable at x=0. if f(0)=0 and f'(0)=2 , then the ...

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  18. If x and y are digits such that 17!""=3556xy428096000, then x+y equals

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  19. Let f:NtoR be such that f(1)=1 and f(1)+2f(2)+3f(3)+.........+nf(n)=n(...

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  20. If 5 distinct balls placed at random into 5 cells, then the probabilit...

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