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If : A=[1 2 0-1 1 2 2-1 1],t h e nA d j(...

If : `A=[1 2 0-1 1 2 2-1 1],t h e nA d j(A)=` `[3 5-1-2 1 5 4-2 3]` (b) `[3-5 1 2-1 5 4 2 3]` `[2-2 4 5 1-2-1 5 3]` (d) None of these

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What will come next in the series given below ? 1 1 2 1 2 3 1 2 3 4 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 6 1 2 3 4 5 6 7 1 2 3 4 5 1) 1 2) 5 3) 6 4) 2 5) None of these

Let A=[1 2 3-5] and B=[1 0 0 2] and X be a matrix such that A=B X , then X is equal to 1/2[2 4 3-5] (b) 1/2[-2 4 3 5] (c) [2 4 3-5] (d) none of these

If A={1,2,4},B={2,4,5},C={2,5},t h e n(A-B)xx(B-C) is (a){(1, 2), (1, 5), (2, 5)} (b) {(1, 4)} (c) (1, 4) (d) none of these.

(3.5xx1.4)/(0.7)=?( a) 0.7(b)2.4(c)3.5(d)7.1 (e) None of these

Following are the margins of victory in the football matches of a league 1, 3, 2, 5, 1, 4, 6,2, 5, 2, 2, 2, 4, 1, 2, 3, 1, 1, 2, 3, 2, 6, 4, 3, 2, 1, 1, 4, 2, 1, 5, 3, 3, 2, 3, 2, 4, 2, 1, 2, 7, 1, 2, 2, 5, 2, 7 Find the mode of this data

If A=[[-1,5],[-3,2]] , then adj A= (A) [[2,3],[-5,-1]] (B) [[1,-5],[3,-2]] (C) [[2,-5],[3,-1]] ,(D) [[-2,5],[-3,1]]

If A=( (2, -1, 3),( -4, 5 ,1 )) and B( (2, 3 ),(4, -2), (1 ,5) ) then AB and BA=

If A=[2-3-5-1 4 5 1-3-4] and B=[2-2-4-1 3 4 1-2-3] , show that A B=A and B A=B .

If A = [(2,2,1), (1,3,1), (1,2,2)] then A^-1+(A-5I) (AI)^2 = (i) 1/ 5 [[4,2, -1], [-1,3,1], [-1,2,4]] (ii) 1/5 [[4, -2, -1], [-1, 3, -1], [-1, -2,4]] (iii) 1/3 [[4,2, -1], [-1,3,1], [-1,2,4]] (iv) 1/3 [[4, -2, -1], [-1,3, -1], [-1, -2,4]]

Let A d+2B=[1 2 0 6-3 3-5 3 1]a n d2A-B=[2-1 5 0-1 6 0 1 2] . Then T r(B) has the value equal to 0 b. 1 c. 2 d. none

RESONANCE DPP-JEE MAINS-All Questions
  1. Which of the following is false? (p=>q)hArr(~ a=>~ p) b. pvv...

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  2. ABC is a triangle. The coordinates of whose vertices are (-2,4),(10 ,-...

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  3. If : A=[1 2 0-1 1 2 2-1 1],t h e nA d j(A)= [3 5-1-2 1 5 4-2 3] (b) ...

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  4. Which of the following is false? (p=>q)hArr(~ a=>~ p) b. pvv(~ p) is ...

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  5. If A=[1ta n x-t a n x1],t h e nA^T A^(-1) is [ cos2x s in2x-s in2x cos...

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  6. If |x3 6 3 6x6x3|=|2x7x7 2 7 2x|=|4 5x5x4x4 5|=0,t h e n^(prime)x^(pri...

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  7. The matrix X for which [1-4 3-2]X=[-16-6 7 2] [-2 4-3 1] (b) [-1/5 ...

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  8. The inverse of a skew symmetric matrix of odd order is 1)a symmetric ...

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  9. If Aalpha=[cosalphasinalpha-sinalphacosalpha],t h e nAalphaAbeta= (...

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  10. A parabola with vertex (2, 0) and axis of symmetry parallel to the ...

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  11. The range of the function f(x) = sin^(-1)[x^2+1/2]+cos^(-1)[x^2-1/2], ...

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  12. The range of parameter ' a ' for which the variable line y=2x+a lies...

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  13. Let f(x)=4x ^2-4ax+a^2-2a+2 x,aϵR If y=f(x) takes minimum value 3 on x...

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  14. The logically equivalent proposition of phArrq is (p^^q)vv(p^^q) b. (p...

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  15. If in triangle A B C ,A-=(1,10), circumcentre -=(-1/3,2/3) and orthoce...

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  16. Let f(x)=4x^2-4ax+a^2-2a+2 be a quadratic polynomial in x, a be any re...

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  17. Which of the following determinants(s) vanish(es)? |4 1 2 10 2 5 3 4 3...

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  18. If vec a , vec ba n d vec c are non-coplanar vectors, prove that the ...

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  19. If a ,b ,c are sides of a scalene triangle, then value of |a b c b c ...

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  20. Set of all values of x satisfying in inequation cos^(-1)sqrt(x)>si...

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