Problem

1. Given \( f(x)=\sqrt{x+2} \) and \( g(x)=3 x^{2} \), evaluate the following:
a. \( f(-1) \)
b. \( f(g(7)) \)

Answer

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Answer

b. f(g(7)) = f(3 \times (7)^{2}) = f(147) = \sqrt{(147 + 2)}

Steps

Step 1 ：a. f(-1) = \sqrt{-1 + 2}

Step 2 ：b. f(g(7)) = f(3 \times (7)^{2}) = f(147) = \sqrt{(147 + 2)}

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