State the derivative of $\tan x$. Hence, find $\displaystyle\int \sec^3 x \, \mathrm{d}x$.[5]

2025 CJC CA1 Q3

Junior College 2

5 marks

State the derivative of $\tan x$. Hence, find $\displaystyle\displaystyle\int \sec^3 x \, \mathrm{d}x$.[5]

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