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Question
If f(x) = `{(x^2 + 3"," x ≤ 2),(5x + 7"," x > 2):},` then find f(3)
Sum
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Solution
f(x) = x2 + 3, x ≤ 2
= 5x + 7, x > 2
f(3) = 5(3) + 7 = 15 + 7 = 22
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