Answer:
n= -2
Step-by-step explanation:
3^n = 1/9
3^n = 1/(3^2)
3^n = 3^(-2)
n = -2
Answer: x=\pi n,\:x=\frac{\pi }{4}+\pi n
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Answer: 5700
Step-by-step explanation: 570 x 10 = 5700
x = 5 ; y = 14
2x = 10
x = 5
y + 2 = 16
y = 14