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Consider points A,B,C annd D with positi...

Consider points A,B,C annd D with position vectors `7hati-4hatj+7hatk,hati-6hatj+10hatk,-1hati-3hatj+4hatk and 5hati-hatj+5hatk`, respectively. Then, ABCD is

A

square

B

rhombus

C

rectangle

D

None of these

Text Solution

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The correct Answer is:
D
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VMC MODULES ENGLISH-VECTORS -JEE MAIN (ARCHIVE)
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  2. A tetrahedron has vertices O (0,0,0), A(1,2,1,), B(2,1,3) and C(-1,1,2...

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  3. If |(a,a^2,1+a^3),(b,b^2,1+b^3),(c,c^2,1+c^2)|=0 and vectors (1,a,a^2)...

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  4. If vecu,vecv and vecw are three non coplanar vectors then (vecu+vecv-v...

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  5. Consider points A,B,C annd D with position vectors 7hati-4hatj+7hatk,h...

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  6. Let A(3,0,-1), B(2,10,6) and C(1,2,1) be the vertices of a triangle an...

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  7. If a unit vector vec a makes angle pi//3 with hat i ,pi//4 with hat...

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  8. Let a=hati + hatj + sqrt(2)hatk, b=b(1)hati + b(2)hatj + sqrt(2)hatk a...

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  9. Prove that the line x=ay+b, z=cy+d and x=a'y+b', z=dy+d' are perpendic...

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  10. Let a=3hati + 2hatj + 2hatk and b= hati + 2hatj - 2hatk be two vectors...

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  11. Let alpha epsilon R and the three vectors veca=alpha hati+hatj+3hatk, ...

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  12. If the length of the perpendicular from the point (beta, 0,beta) (beta...

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  13. Let vecalpha = 3hati + hatj and beta= 2hati - hatj + 3hatk. If vecbeta...

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  14. Let a=3hati + 2hatj + xhatk and b = hati - hatj + hatk, for some real ...

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  15. The sum of the distinct real values of mu, for which the vectors, mu h...

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  16. If veca=hati+2hatj+4hatk, vecb=hati+lamdahatj+4hatk, vecc=2hati+4hatj+...

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  17. Let a=hati - hatj, b=hati + hatj + hatk and c be a vector such that a ...

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  18. Let a , b and c be three unit vectors out of which vectors b an...

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  19. Let alpha = (lambda-2) a + b and beta =(4lambda -2)a + 3b be two given...

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  20. Let veca = 2hati+lambda1 hatj+3hatk, vec(b)=4hati+(3-lambda2) hatj+6ha...

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