A mechanical engineer models the internal pressure PPP of a cylinder during a specific stroke using the expression P(t)=(12t−3)5P(t) = \left(\frac{1}{2}t - 3\right)^5P(t)=(21t−3)5, where ttt is the time in milliseconds. Determine the constant term in the binomial expansion of P(t)P(t)P(t).
108 exam-style questions on WJEC A Level Maths 1.4.1 Sequences and Series - The Binomial Theorem. Each one has a worked solution and a mark scheme showing where the marks go.