Question

Guys solve this as soon as possible​

Answer 1

Answer:

Step-by-step explanation:

We can take dot product

so, A.B = |A||B|cosθ           ................(1)

A.B = -1 + 2 + 2= 3

|A| = =

Again |B| = =

now, substituting all values in the first equation

3 = x x cosθ

= cosθ

= cosθ

=> θ = ( )

=> θ = 60⁰

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Answer 2

Answer:

not clear..........................