Class 12 Book Solution from S N Dey in Mapping of Function Question No: 2C.1.1

সঠিক উত্তরটি নির্বাচন করো : মনে করো সব বাস্তব সংখ্যার সেট R এবং \(f:R\rightarrow R\) চিত্রণ \(f(x)=2x^2\) দ্বারা সংজ্ঞাত ; তাহলে \(f^{-1}(32)=\) ?
(a) {4, - 4} (b) {1, - 1} (c) {2, - 2} (d) {3, - 3}

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