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JEE Mains Model Paper 1

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Question : 43 of 90
 
Marks: +1, -0
If
→
a
 and
→
b
 are two vectors such that |
→
a
| = 1 , |
→
b
| = 4 ,
→
a
.
→
b
 = 2. If
→
c
 = (2
→
a
 ×
→
b
) - 3
→
b
 then angle between
→
b
 and
→
c
 is
Validate
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