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If |{:(x,4,10),(5,2,5),(7,3,x):}|=0 then...

If `|{:(x,4,10),(5,2,5),(7,3,x):}|=0` then `x in …………`

A

`{10}`

B

`{(15)/(2)}`

C

`{10,7}`

D

`{10,(15)/2}`

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KUMAR PRAKASHAN-DETERMINANTS -Textbook based MCQs
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  2. The equations of line passing through (-7,8) and (5,8) is ………

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  3. If |{:(x,4,10),(5,2,5),(7,3,x):}|=0 then x in …………

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  4. D=|{:(a^2+2a,2a+1,1),(2a+1,a+2,1),(3,3,1):}| then,

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  5. The given system of equations x-ky-z=0, kx-y-z=0, x+y-z=0 has non zero...

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  8. If A is a square matrix and A^2=A" then |A|=……..

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  17. If ane0,bne0,cne0 and |{:(0,x^2+a,x^4+b),(x^2-a,0,x-c),(x^3-b,x^2+c,0)...

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  18. If x,y,z in R. xgtygtz and D= |{:((x+1)^2,(y+1)^2,(z+1)^2),(x,y,z),(...

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  19. If A = [( 1, cos theta , 1,),( - cos theta ,1,cos theta ),( -1 , - cos...

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