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प्रश्न
If f(x) = 2x2 + 3, g(x) = 5x − 2, then find g ° f
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उत्तर
f(x) = 2x2 + 3, g(x) = 5x − 2
(g ° f) (x) = g(f (x)) = g(2x2 + 3)
= 5(2x2 + 3) – 2
= 10x2 + 13
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