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If A=[(0,1,2),(1,2,3),(3,1,1)] and its ...

If `A=[(0,1,2),(1,2,3),(3,1,1)]` and its inverse `B=[b_(ij)]`, then the element `b_(23)` of matrix B is -

A

-1

B

1

C

-2

D

2

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CHHAYA PUBLICATION-MCQ ZONE -Question Paper 6
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  6. If 2X+[(1,2),(3,4)]=[(3,8),(7,2)], then the matrix X is equal to -

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  7. If A=[(alpha,2),(2,alpha)] and |A^(3)|=125, then the value of alpha ...

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  9. Two persons A and B take turns in throwing a pair of dice. The first p...

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  10. A fair coin is tossed n times. The probability of getting head at leas...

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  11. A card is drawn from an ordinary pack of 52 cards and a gambler bets ...

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  12. Out of 30 consecutive natural numbers, 2 are chosen at random. The pr...

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  13. A relation R is defined on the set of integers Z as follows: R{(x,y...

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  14. The projection of the vector vec alpha=2hati+3hatj+2hatk on the vector...

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  15. If the position vectors of the points A, B, C, D are hati+hatj+hatk,...

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  16. Let OP = 21 where O is the origin, if the direction radios of OP are p...

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  17. The vector equation of the line passing through the point (3, -1, 2) a...

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  18. The angle between the pair of lines (x-2)/(1)=(y+3)/(-2)=(z-4)/(2) a...

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  19. The cartesian equation of a straight line is (x-3)/(4)=(y+2)/(5)=(z-...

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  20. Three vectors veca, vecb, vec c are such that |veca|=3, |vecb|=2, |ve...

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