If a and b be non-zero, non collinear vectors of mod a+b mod = mod a+b mod, then find angle between a and b
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Answered by
0
Answer:
∣
a
+
b
∣
∣
∣
=
∣
∣
∣
a
−
b
∣
∣
∣
∣
∣
∣
a
+
b
∣
∣
∣
2
=
∣
∣
∣
a
−
b
∣
∣
∣
2
∣
a
∣
2
+
∣
∣
∣
b
∣
∣
∣
2
+2
a
b
=∣
a
∣
2
+
∣
∣
∣
b
∣
∣
∣
2
−2
a
b
a
.
b
=0
a
⊥
b
⇒θ=90
0
Then,
We get θ=90
0
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