justice808
05.09.2020 •
Mathematics
What is the period of the function f(x) = -4cos(5x – 9) – 7?
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Ответ:
A
Step-by-step explanation:
x - 4 = 6 or -6 when taken square root
So, x = 6 + 4 = 10 or -6 + 4 = -2
thank, 5 star, and brainliest if helpful!