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The interval in which the function increases will be:
The interval in which the function $f(x) = 5 + 36x - 3x^2$ increases will be:
- (a)$(-\infty, 6)$
- (b)$(6, \infty)$
- (c)$(-6, 6)$
- (d)$(0, -6)$
Answer
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From ISC 2023 Mathematics Paper 1, question 1(ix).