作业帮1/(1+n )+1/(3+n)+1/(6+n)＞19/36,当n是正整数时,求n的最大值.
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1/(1+n )+1/(3+n)+1/(6+n)＞19/36,当n是正整数时,求n的最大值.
1/(1+n )+1/(3+n)+1/(6+n)＞19/36,当n是正整数时,求n的最大值.
1/(1+n )+1/(3+n)+1/(6+n)＞19/36,当n是正整数时,求n的最大值.
19/36=1/(1+3 )+1/(3+3)+1/(6+3)
1/(1+n )+1/(3+n)+1/(6+n)>1/(1+3 )+1/(3+3)+1/(6+3)
n
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