What is the value of 1^2−2x−3y5for x = 2 and y = –4?
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
We have the angle in standard post has a sine ratio of
This means the opposite side length of the corresponding right triangle is 9 units and the hypotenuse is 41 units.
Using Pythagoras Theorem, the adjacent side length can be found using:
This implies that:
The cosine ratio is adjacent over hypotenuse.
Since we are in the second quadrant, the cosine ratio is negative;