Question

the angle between two vectors a and b with magnitudes√3 and 4 respectively and a.b=2√3 is​

Answer 1

Answer:

Here, ∣

a

∣=

3

,∣

b

∣=4 and

a

.

b

=2

3

We know that,

a

.

b

=∣

a

∣∣

b

∣cosθ

⇒2

3

=

3

.4.cosθ

⇒cosθ=

4

3

2

3

=

2

1

∴θ=

3

π

Answer 2

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