Hello :
look : 40 = 2×20 80 = 2×40
knowing tan 20º by calculator , for 40° , 80°use the identity :
tan (2x) = (2tan(x))/(1-tan²(x))
Answer: (-2,2)
Step-by-step explanation: -2 - -4 = -2 and 5 - 7 = 2 so I think (-2,2)
Answer:
g (-2) = 22
Step-by-step explanation:
Evaluate g( -2) if g(x) = x^2 – 4x + 10
g(-2) = (-2)^2 - 4(-2) + 10
g(-2) = 4 + 8 + 10
g (-2) = 22