00:01
In this question, vector u is given as minus 6 comma minus 5 and vector v is given as 0 comma 1.
00:12
Now dot product between the two vectors will be minus 6 multiplied by 0 and plus minus 5 multiplied by 1.
00:26
So, after simplification this will be 0 minus 5 which is minus 5.
00:32
So, dot product between u and v, u and v is minus 5.
00:39
So, this is one of the required answer.
00:42
Now to find angle theta, cos theta magnitude of vector v is given by under root square of minus 6.
00:54
So, under root square of minus 6 and plus square of minus 5.
01:01
So, this will be equals to under root 36 plus 25.
01:06
So, magnitude of vector u will be, here it will be 6 plus 5 that is 11, 3 plus 2 plus 1...