Higher Secondary Question Paper Solution of Year 2017 Question No: A.2.(c)(i)(or)
\(p^2 = a^2cos^2 \theta + b^2sin^2 \theta\) হলে দেখাও যে, \(p + {{d^2p}\over {d\theta^2}} = {a^2b^2 \over p^3}\)

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