Question

the angle that the vector of A=2ivector+3jvector makes with y axis is find it​

Answer 1

Answer:

A

=2

i

^

+3

j

^

A

.

j

^

=

13

cosθ

3=

13

cosθ

θ=cos

−1

(

13

3

)

Using formula, tan(cos

−1

x)=

x

1−x

2

we will get:

θ=tan

−1

13

3

1−

13

9

θ=tan

−1

(

3

2

)

Answer 2

Explanation:

Please Send the options.