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If x =a/(b-c), y=b/(c-a), z = c/(a-b), t...

If `x =a/(b-c), y=b/(c-a), z = c/(a-b)`, then what is the value of the following ?
`|{:(1,-x,x),(1,1,-y),(1,z,1):}|. |{:(1,1,-1),(1,1,-1),(1,3,1):}|`

A

0

B

1

C

abc

D

`ab+ bc + ca`

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NDA PREVIOUS YEARS-QUESTION PAPER 2021(I)-MULTIPLE CHOICE QUESTION
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  2. If i = sqrt(-1), then how many values does i^(-2n) have for different ...

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  3. If x =a/(b-c), y=b/(c-a), z = c/(a-b), then what is the value of the f...

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  4. Consider the following in respect of the matrix: [{:(1,1,1),(1,1,1),...

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  5. Consider the following for the next two que that follow: A circle ...

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  6. A circle is passing through the points [5,-8], (-2,9) and (2,1) If r ...

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  7. Conider the following for the next two (02 items that follow) The tw...

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  8. Direction: Consider the following for the next two [02] items that fol...

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  9. The equations of the sides AB, BC and CA of a triangle ABC are x-2=0, ...

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  10. The locus of a point P(x,y,z) which moves in such a way that z=7 is a

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  11. The xy-plane divides the line joining the points (-1,3,4) aned (2,-5,6...

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  12. Find the number of sphere of radius r touching the coordinate ax...

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  13. If veca+3vecb=3hati-hatj and 2veca+vecb=hati-2hatj ,then what is the a...

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  14. If (veca+vecb) is perpendicular to veca and magnitude of vecb is twice...

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  15. If the position vectors of A and B are (sqrt2-1)hati-hatj and hati+(sq...

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  16. If y=(1+x)(1+x^(2))(1+x^(4))(1+x^(8))(1+x^(16)) then what is (dy)/(dx)...

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  17. If y=cosx.cos4x.cos8x, then what is (1)/(y)(dy)/(dx) at x=(pi)/(4) equ...

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  18. Let f(x) be a polynomial function such that f(x)=x^(4). What is f'(1) ...

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  19. What is lim(ntooo)(a^(n)+b^(n))/(a^(n)-b^(n)) where agtbgt1, equal to?

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