The length of the hypotenuse = √(-3^2 +1^2) = √10
The point -3,1 tell us the length of y is 1 and the length of x is 3.
This would make opposite = 1 and adjacent = -3
Sinθ = opposite/hypotenuse = 1/√10 = √10/10
Cosθ = adjacent/hypotenuse = -3/√10 = - 3√10/10
Tanθ = opposite/adjacent = 1/-3 = -1/3
Answer:
(x^2) - 15
Step-by-step explanation:
assuming x is the 'number'
number squared = number to the power of 2 = x^2
decreased by 15 = -15
Anything but the number 8