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f(x)=\( \Large \frac{1}{x^{2}} \) and g (x)=\( \Large e^{-9x} \) then (f o g) (x) is
A) \( \Large \frac{1}{e^{18x}} \)
B) \( \Large \frac{1}{e^{-18x}} \)
C) \( \Large \frac{1}{e^{-18x^{2}}} \)
D) \( \Large \frac{1}{e^{18x^{2}}} \)
Correct answer:
B) \( \Large \frac{1}{e^{-18x}} \)
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