Answer:

Step-by-step explanation:
Given: 
We have to find the value of 
Since Given 
Using trigonometric identity,

Thus, for
comparing , we have,

We get,

Thus, 
D.
Step-by-step explanation:
because cos0 = b/h
so cos0 = 8/15
There are 4 terms. Those terms are 4n, 2n, 9, and 5.
Answer:
It's a horizontal line passing through 4 on the y-axis.
Simply place a ruler at 4 and draw a straight line from left to right, which passing through the number 4.