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प्रश्न
If f(x) = 3x + 5, g(x) = 6x − 1, then find (fg) (3)
उत्तर
f(x) = 3x + 5, g(x) = 6x – 1
(fg) (3) = f(3) g(3)
= [3 (3) + 5] [6 (3) – 1]
= (14) (17)
= 238
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