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Question
Mathematics
If | veca × vecb|+| veca ⋅ vecb|2=36 and | veca|=3 then | vecb| is equal to
Q. If
∣
a
×
b
∣
+
∣
a
⋅
b
∣
2
=
36
and
∣
a
∣
=
3
then
∣
b
∣
is equal to
798
125
KCET
KCET 2022
Vector Algebra
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A
9
0%
B
4
0%
C
36
0%
D
2
100%
Solution:
Correct answer is (d) 2