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CUSAT 2022 BTech Solved Paper Shift 3

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Question : 196 of 200
 
Marks: +1, -0
If
→
a
 is a unit vector and (
→
x
+
→
a
)â‹…(
→
x
−
→
a
)=24, the |
→
x
| must be
Validate
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