A biologist models the concentration of a particular catalyst, CCC, measured in mmol dm−3\text{mmol dm}^{-3}mmol dm−3, over time t t\,t minutes where t≥0t \ge 0t≥0. The concentration is given by the function:
C(t)=5t+202t+1 C(t) = \frac{5t + 20}{\sqrt{2t + 1}} C(t)=2t+15t+20Find, in simplest form, an expression for C′(t)C'(t)C′(t).
Hence, determine the exact range of the function CCC.
332 exam-style questions on WJEC A Level Maths 3.6 Differentiation (A-level only), covering 3.6.1 Differentiation (A-level only), 3.6.2 Differentiation (A-level only), 3.6.3 Differentiation (A-level only), 3.6.4 Differentiation (A-level only), 3.6.5 Differentiation (A-level only), 3.6.6 Differentiation (A-level only), 3.6.7 Differentiation (A-level only), and 3.6 Differentiation (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.