Question

Differentiate f(x)=πsec(πx)

Answer 1

\[f(x)=\pi \sec \left( \pi x \right),f \prime (x)=\pi \sec \left( \pi x \right)\tan \left( \pi x \right) \pi \]
\[=\pi ^2 \sec \left( \pi x \right)\tan \left( \pi x \right)\]

Answer 2

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