Special cases of the sum and difference formulas for sine and cosine yields what is known as the double‐angle identities and the half‐angle identities.
C) and E) because for X = -1 and X= 1 the functions f(x) and g(x) they have the same values.
Answer:
x=21 y=58 z=105 have a great day!!!
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
