Question

the angle that vector is equals to 5 ICAP + 5 j cap makes with y axis​

Answer 1

Answer: 45°

Explanation:

Let's just go about this in a graphical way of solution

It's 5i+5j so x co-ordinate is same as y co-rdinate. There fire it forms the y=x line which is the angular bisector of the xy plane

Therefore it divides 90° to 45 and 45 each.

So it makes 45° with y axis.

Another way to go about this is by drawing components.

5i+5j can be split into 2 components namely x component and y component. Considering the angle between y axis and the vector to be theta we can take x component as sintheta and y as cos theta. So sin by cos = tan so substituting components we get 5/5= tan theta

Tan theta =1

Theta will be 45°

Answer 2

Answer:

answer is 45 degrees

Explanation:

sin/cos=tantheta

5/5=tan theta

tan theta= 1

theta = 45 degrees