chứng minh rằng với $x\epsilon [0;\pi ]$ thì $\left | sin 2013x \right |\leq 2013 sinx$
CMR: $\left | sin 2013x \right |\leq 2013 sinx$
Started By whiterose96, 29-01-2013 - 12:43
#1
Posted 29-01-2013 - 12:43
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