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Find the all the values of lamda such th...

Find the all the values of lamda such that `(x,y,z)!=(0,0,0)`and `x(hati+hatj+3hatk)+y(3hati-3hatj+hatk)+z(-4hati+5hatj)=lamda(xhati+yhatj+zhatk)`

A

A. `-2,0`

B

B `0,-2`

C

C. `-1,0`

D

D. `0,-1`

Text Solution

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The correct Answer is:
D

Comparing the coefficient of `hati,hatj and hatk`, and the corresponding equations are
`x+3y-4z-lamdax` or `(1-lamda)x+3y-4z=0` . . . (i)
`x-(lamda+3)y+5z=0` . . . (ii)
`3x+y-lamdaz=0` . . . (iii)
These eqs. (i), (ii) and (iii) have a non-trivial solution, if
`|((1-lamda),3,-4),(1,-(lamda+3),5),(3,1,-lamda)|=0implies lamda =0,-1`
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ARIHANT MATHS-VECTOR ALGEBRA-Exercise (Single Option Correct Type Questions)
  1. Four non-zero vectors will always be

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  2. The vectors a,b and a+b are

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  3. Find the all the values of lamda such that (x,y,z)!=(0,0,0)and x(hati+...

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  4. The number of integral values of p for which (p+1) hati-3hatj+phatk, p...

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  5. If the vectors AB=3hati+4hatk and AC=5hati-2hatj+4hatk are the sides o...

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  6. In the figure, a vectors x satisfies the equation x-w=v. then, x is eq...

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  7. Vectors veca = hati+2hatj+3hatk, vec b = 2hati-hatj+hatk and vecc= 3ha...

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  8. If OP=8 and OP makes angles 45^(@) and 60^(@) with OX-axis and OY-axis...

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  9. Let a,b and c be three unit vectors such that 3a+4b+5c=0. Then which o...

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  10. if A,B,C,D and E are five coplanar points, then vec(DA) + vec( DB) + v...

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  11. If the vectors veca and vecb are linearly independent satisfying (sqrt...

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  12. Find the slope of the normal having point (3,2) and (4,1)

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  13. A line passes through the points whose position vectors are hati+hatj-...

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  14. Find the slop of line . The Equation of line is 2x-3y=2

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  15. If P and Q are the middle points of the sides BC and CD of the paralle...

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  16. If the figure formed by the four points hati+hatj-hatk,2hati+3hatj,3ha...

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  17. A and B are two points. The position vector of A is 6b-2a. A point P ...

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  18. If three points A,B and C are collinear, whose position vectors are ha...

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  19. If in a triangle AB=a,AC=b and D,E are the mid-points of AB and AC res...

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  20. The two adjacent sides of a parallelogram are 2hati+4hatj-5hatk and ha...

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