Answer:
Hello! A function is easily identified when an x value does not have more than 1 y value. a y value can have as many x values to infinity, but x can only have one y.
Example...
x y
3 5
4 5
1 2
Find a common denominator in the two fractions before you can do anything

From Left side:


NOTE: sin²θ + cos²θ = 1






Left side = Right side <em>so proof is complete</em>
Answer:

Step-by-step explanation:

Step-by-step explanation:
hi im not really sure if this is right