If f(x) = 2x2 + 3, g(x) = 5x – 2, then find gog. - Mathematics and Statistics

If f(x) = 2x² + 3, g(x) = 5x – 2, then find gog.

Sum

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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Chapter 2: Functions - Exercise 2.1 [Page 31]

Chapter 2 Functions
Exercise 2.1 | Q 9. (d) | Page 31

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Which sets of ordered pairs represent functions from A = {1, 2, 3, 4} to B = {−1, 0, 1, 2, 3}? Justify : {(1, 2), (2,−1), (3, 1), (4, 3)}

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