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The number of ways in which four different letters can be put in their four addressed envelopes such that atleast two of them are in the wrong envelopes are

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RESONANCE DPP ENGLISH-JEE MAINS-All Questions
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  2. Let f: R->R be such that f(1)=3 and f^(prime)(1)=6. Then lim(x->0)((f...

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  3. The number of ways in which four different letters can be put in their...

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  4. If y is a function of x and log(x+y)-2x y=0, then the value of y^(prim...

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  5. In triangle A B C ,a , b , c are the lengths of its sides and A , B ,C...

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  6. The equation of a parabola is (x + y - 2)^2 = sqrt2 (x - y) then (a) ...

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  7. If a ,b ,c are the sides of a triangle such that a : b : c=1:sqrt(...

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  8. If S is a set of P(x) is polynomial of degree le2 such that P(0)=0,P(1...

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  9. Given that the 4th term in the expansion of [2+(3x//8)]^(10) has the m...

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  10. If the angles of a triangle are in the ratio 4:1:1, then the ratio of ...

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  11. If xcosy+ycosx=pi then the value of y^(0) is equal to pi (b) -pi (c)...

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  12. The number of ways in which letter of the word '"ARRANGE"' can be arra...

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  13. In a A B C if b=2,c=sqrt(3) and /A=pi/6 , then value of R is equal to...

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  14. If f''(x)=-f(x) and g(x)=f^(prime)(x) and F(x)=(f(x/2))^2+(g(x/2))^2 a...

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  15. An experiment succeeds twice as often as it fails. Then find the proba...

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  16. In a Delta ABC if b+c = 3a then cot. (B)/(2). cot. (C )/(2) has the va...

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  17. Number of 5 digit numbers which can be read in the same way from the l...

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  18. Let g(x)=log(e)f(x) where f(x) is twice differentiable positive functi...

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  19. If in a triangle A B C ,bcos^2A/2+"a c o s"^2B/2=3/2c , then a ,c ,b a...

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  20. Evaluate the following: (lim)(xvec1)[1/(1+x)-3/(1+x^3)]

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