can you please send me the answer please
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Answer:
We know that magnitude of a vector is equal to = ✓of the sum of the vectors
Explanation:
/a+b/ = /a-b/
✓a²+2abcosx+b² = ✓a²-2abcosx+b²
squaring on both sides
the roots get cancelled
a²+b²+2abcosx = a²+b²-2abcosx
2abcosx = -2abcosx
2abcosx + 2abcosx = 0
4abcosx = 0
sending 4ab towards RHS
cosx = 0/4ab
cosx = 0
x =90
honeyhoney30:
tq so much
my pleasure! friend
:-)
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