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प्रश्न
If f(x) = 2x2 + 3, g(x) = 5x – 2, then find gog.
उत्तर
f(x) = 2x2 + 3, g(x) = 5x – 2
(gog) (x) = g(g(x)) = g (5x – 2)
= 5(5x – 2) – 2
= 25 x – 10 – 2
= 25 x – 12
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