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{:(I."The angle between the vectors" 2i....

`{:(I."The angle between the vectors" 2i. + j- k I - 4j - 2k, a. pi//6),(II. "The angle between the vectors" I + 2j - k 2i + j + k, b. pi//4),(III. "The angle between a.b if a.b if a.b.a + b are unit vector",c. pi//3),(IV. "The angle between" vec(AC) vec(BD) if A = (1.1.0) B = (1. -1.0) C = (-1.1.0) D = (0.-1.1),d.pi//2):}`

A

a,c,c,b

B

d,c,c,b

C

c,a,b,d

D

d,c,c,a

Text Solution

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The correct Answer is:
B
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