If hata.hatb=1/2then what is the angle b...

If `hata.hatb=1/2`then what is the angle between` hata and hatb`?

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THREE DIMENSIONAL GEOMETRY
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SHARAM PUBLICATION-VECTORS-EXAMPLE

Write a unitvector in the direction of the sum of vectors veca=2hati-h...
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If veca =xhati+2hatj-zhatk, vecb=3hati-yhatj+2hatk are two equal vecto...
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If hata.hatb=1/2then what is the angle between hata and hatb?
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Write the value of the cosine of the angle which the vector veca =hati...
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Write a vector in the direction of the vector hati-2hatj+3hatk that ha...
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Find the value of ‘a’ such that the vector 6hati+2hatj-3hatk is perpen...
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What is the unit vector perpendicular to the vectors hati- hatj and 2h...
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What is the magnitude of 2veca xx 3veca ?
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If (vec a times vec b)^2 + (vec a cdot vec b)^2=144, write the value o...
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Write a vector normal to hati+hatk and hati+hatj.
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What is the angle between hati+ hatj and hati-hatj ?
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If veca and vecb are unit vectors such that vecaxxvecb is a unit vecto...
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If two vectors oversetrarra and oversetrarrb are such that |oversetrar...
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What is the direction of (hati+hatj+hatk)+(hati+hatk-3hatj)+ (hatk+hat...
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What is the projection of hat i + hat j - hat k upon the vector hat i ...
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Prove that [vecaxxvecbvecbxxveccveccxxveca] = [vecavecbvecc]^2
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Let vec(a) = hat(i) + hat(j) + hat(k), vec(b) = 4hat(i) - 2hat(j) + 3h...
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Show that [veca+vecbvecb+veccvecc+veca] = 2[vecavecbvecc]
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If veca+vecb+vecc = vec0, |veca| = 3 , |vecb| = 5 and |vecc| = 7, find...
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The position vectors of the points A, B, C and D are 4hati+3hatj-hatk,...
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