If we divide 12.6/4.5 by 3 we receive 4.2/1.5. So yes they are proportional. <span />
Answer:
(2,-2)
Step-by-step explanation:
Point A is 2 units to the right of the origin so the x coordinate is 2
It is also 2 units down so the y coordinate is -2
The point is (x,y) so A = (2,-2)


<u>Step-by-step explanation:</u>
Given data:

To find:
cos 2 theta and tan 2 theta
<u>Solution:</u>
Hence, the trigonometric formula for those are below,


Now, find the required data by substituting the given value. We get,

Similarly for cos 2 theta,
