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CBSE Class 12 Math 2022 (Term II) Delhi Set 1 Solved Paper

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Question : 4
Total: 14
If
→
a
=
^
i
+
^
j
+
^
k
,
→
a
⋅
→
b
=1 and
→
a
×
→
b
=
^
j
−
^
k
, then find |
→
b
|
Solution:     👈: Video Solution
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