Question

() JU
55. If vectors B, 0 and Ř have magnitudes 5, 12 and
13 units and P+Q=Ř, the angle between 0 and
Ř is :
Os

Answer 1

Answer:

cos^-1*13/12

Explanation:

In this type of question perfect value of angle is not given so the answer will come in the forn of cos inverse or sin inverse

According to the question

let x is the angle between 12 and 13

by taking 12 component to 13 we can get

12cos(a)=13

cos(a)=13/12

(a)=cos^-1*13/12

or it may taken by other scientific calculator