Tuesday, March 12, 2013


\mathfrak{I.} គណនា​លីមីត​ខាង​ក្រោម៖
1) \displaystyle \lim_{x \to 0} \frac{1-cosxcos2xcos3x...cosnx}{{x}^2}
2) \displaystyle \lim_{x \to 1} \frac{mx^{m+1}-(m+1)x^m+1}{x^{n+1}-x^n-x+1} ដែល m,n \in \mathbb{N^*}
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