Sum
If f(x) = 3x + 5, g(x) = 6x − 1, then find (f − g) (2)
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Solution
f(x) = 3x + 5, g(x) = 6x − 1
f(2) = 3(2) + 5 = 11
g(2) = 6(2) + 5 = 11
∴ (f − g) (2) = f(2) − g(2)
= 11 − 11
= 0.
Concept: Concept of Functions
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