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Find the number of ways in which four di...

Find the number of ways in which four distinct balls can be kept into two identical boxes so that no box remains empty.

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NTA MOCK TESTS-JEE MOCK TEST 15-MCQS (MATH)
  1. underset(nrarroo)(lim)(3.2^(n+1)-4.5^(n+1))/(5.2^(n)+7.5^(n))=

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  2. Let function F be defined as f(x)= int1^x e^t/t dt x > 0 then the v...

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  3. The sum of the squares of deviation of 10 observations from their mean...

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  4. 2.The number of ordered pair(s) (x,y) satisfying y = 2 sinx and y = 5x...

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  5. If g(x)=x^(2)+x+x-1 and g(f(x))=4x^(2)-10x+5 then find f((5)/(4))

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  6. The tangents to x^2+y^2=a^2 having inclinations alpha and beta interse...

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  7. Which of the following is logically equivalent to ~(~pto q)?

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  8. The number of different terms in the expansion of (1-x)^(201)(1+x+x^(2...

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  9. The angle of elevation of an object on a hill is observed from a certa...

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  10. If alpha,beta are the roots of the equation x^(2)-3x+4=0, then the equ...

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  11. If y=Acos(logx)+B sin(logx) then prove that x^(2)(d^(2)y)/(dx^(2))+x(d...

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  12. If z be a complex number satisfying |z-4+8i|=4, then the least and the...

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  13. A perpendicular is drawn from a point on the line (x-1)/(2)=(y+1)/(-1)...

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  14. The general solution of the differential equation (dy)/(dx)+sin(x+y)/2...

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  15. The number of value of x in [0,2] at which f(x)=|x-1/2|+|x-1|+tan x is...

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  16. Find the number of ways in which four distinct balls can be kept into ...

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  17. A bag contains b blue balls and r red balls. If two balls are drawn at...

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  18. If the maximum and minimum values of the determinant |(1+sin^(2)x,co...

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  19. The equation of the common tangent to the curves y^(2)=4x and x^(2)+32...

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  20. I=int (dx)/(""^(4)sqrt( (x-1) ^(3) (x+2)^(5)))=k ""^(4)sqrt((x-1)/(x+2...

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