Class 12 Book Solution from S N Dey in Increasing and Decreasing Function Question No: 22.4.3.(iii)
\(0<x<\frac{\pi}{2}\) হলে প্রমান করো যে,
\(cosx>1-\frac{x^2}{2!}\)
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Class 12 (দ্বাদশ শ্রেণী) S N Dey (এস এন দে - দ্বাদশ শ্রেণী) Other Chapter Solutions
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