If the points whose position vectors 10h...

If the points whose position vectors `10hati+3hatj,12hati-5hatj` and `ahati+11hatj` are collinear then a is equal to

A

6

B

3

C

5

D

8

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SURA PUBLICATION-VECTOR ALGEBRA -I-EXERCISE 8.5

A vector makes equal angle with the positive direction of the coordina...
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The vectors veca-vecb,vecb-vecc,vecc-veca are
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If ABCD is a parallelogram, then vec(AB)+vec(AD)+vec(CB)+vec(CD) is e...
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One of the diagonals of parallelogram ABCD with veca and vecb as adjac...
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If veca,vecb are the position vectors A and B then which one of the fo...
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If veca,vecb,vecc are the position vectors of three collinear points, ...
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If vecr=(9veca+7vecb)/(16) then the point P whose position vector vecr...
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If lambdahati+2lambdahatj+2lambdahatk is a unit vector,then the value ...
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Two vertices of a triangle have position vectors 3hati+4hatj-4hatk and...
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If |veca+vecb|=60,|veca-vecb|=40" ""and"" " |vecb|=46,"then" |veca|is
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If veca and vecb having same magnitude and angle between them is 60^(@...
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The value of thetain(0,(pi)/(2)) for which the vectors veca=(sintheta)...
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If |veca|=13,|vecb|=5 and veca.vecb = 60 then |vecaxxvecb| is
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Vectors veca and vecb are inclined at an angle theta = 120^(@). If |ve...
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If veca and vecb are two vectors of magnitude 2 and inclined at an ang...
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If the projection of 5hati-hatj-3hatk on the vector hati+3hatj+lambdah...
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If (1,2,4) and (2,-3lambda,-3) are the initial and terminal points of ...
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If the points whose position vectors 10hati+3hatj,12hati-5hatj and aha...
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If veca=hati+hatj+hatk,vecb=2hati+xhatj+hatk,vecc=hati-hatj+4hatk and ...
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If veca=hati+2hatj+2hatk,|vecb| =5 and the angle between veca and vecb...
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