Given:
To find:
The quadrant of the terminal side of 
and find the value of 
.
Solution:
We know that,
In Quadrant I, all trigonometric ratios are positive.
In Quadrant II: Only sin and cosec are positive.
In Quadrant III: Only tan and cot are positive.
In Quadrant IV: Only cos and sec are positive.
It is given that,
Here cos is positive and sine is negative. So, 
must be lies in Quadrant IV.
We know that,
It is only negative because lies in Quadrant IV. So,
After substituting , we get
Therefore, the correct option is B.
Answer:
62, 000
Step-by-step explanation:
Using A as the variable then B received 2A votes and C received A - 15, 000
Given the total number of votes was 109, 000, then
A + 2A + A - 15000 = 109000, that is
4A - 15000 = 109000 ( add 15000 to both sides )
4A = 124000 ( divide both sides by 4 )
A = 31000
Then B received 2 × 31000 = 62000 votes
This is a scalene triangle, as it has 3 unequal sides
