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If i=sqrt(-1),P=[(i,0,-i),(0,-i,i),(-i,...

If `i=sqrt(-1),P=[(i,0,-i),(0,-i,i),(-i,i,0)] and Q=[(-i,i),(0,0),(i,-i)]` then PQ is equal to -

A

`[(2,-2),(-1,1),(-1,1)]`

B

`[(-2,2),(1,-1),(1,-1)]`

C

`[(2,-2),(-1,1)]`

D

`[(1,0),(0,1)]`

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The correct Answer is:
A
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CHHAYA PUBLICATION-MCQ ZONE -Question Paper 5
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  2. If A=[(-1,2),(2,-1)], B=[(5),(7)] and AX=B then X is equal to -

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  3. If i=sqrt(-1),P=[(i,0,-i),(0,-i,i),(-i,i,0)] and Q=[(-i,i),(0,0),(i,-...

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  13. If vecr(1)=hati+2hatj-2hatk and vecr(2)=3hatj-4hatk, then the angle be...

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  14. A unit vector which is perpendicular to both the vectors veca=hati-ha...

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  15. If |veca|=7,|vecb|=sqrt(26) and |veca xx vecb|=35, then the value of v...

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  16. The equation of any plane parallel to y -axis is -

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  17. If |vecb|=4 and (veca+vecb)*(veca-vecb)=9, then the value |veca| is -

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  18. If the line vecr=(2hati-hatj+3hatk)+lambda(2hati+hatj+2hatk) is paral...

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  19. If the equation ax^(4)+bx^(3)+cx^(2)+kx=0 has a root alpha gt 0, the...

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  20. The chord of the curve ax^(2)+bx+c=0, joining the points x=p and x=q o...

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