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If Dk=|[1,n,n],[2k,n^2+n+2,n^2+n],[2k-1,...

If `D_k=|[1,n,n],[2k,n^2+n+2,n^2+n],[2k-1,n^2,n^2+n+2]|` and `sum_(k=1)^n D_k=48 `,then n equals (a)`4` (b)` 6` (c)` 8` (d) none of these

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RD SHARMA ENGLISH-DETERMINANTS-All Questions
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  2. Let |x^2+3xx-1x+3x+1-2xx-4x-3x+4 3x|=a x^4+b x^3+c x^2+e be an identi...

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  3. If Dk=|[1,n,n],[2k,n^2+n+2,n^2+n],[2k-1,n^2,n^2+n+2]| and sum(k=1)^...

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  4. If Delta1=|(1, 1 ,1),(a, b, c ),(a^2,b^2,c^2)|,Delta2=|(1,b c, a),(1,c...

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  9. Evaluate the determinant D=|[2 ,3,-2],[ 1, 2 ,3],[-2, 1,-3]| by expa...

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  10. Evaluate D =|[2, 3,-2],[ 1, 2, 3],[-2, 1,-3]|

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  15. If A=[1 2 4 2] , then show that |2A|=4|A| .

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  17. Let |[3,y],[x,1]|=|[3,2],[4,1]| Find possible values of x and y if x,y...

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