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题型:单选题 题类:模拟题 难易度:普通
2017年安徽省宣城市郎溪中学高考数学仿真试卷(理科)
那么,第2017行第2016个数是( )
(sin )﹣2+(sin )﹣2= ×1×2;
(sin )﹣2+(sin )﹣2+(sin )﹣2+sin( )﹣2= ×2×3;
(sin )﹣2+(sin )﹣2+(sin )﹣2+…+sin( )﹣2= ×3×4;
(sin )﹣2+(sin )﹣2+(sin )﹣2+…+sin( )﹣2= ×4×5;
…
照此规律,
(sin )﹣2+(sin )﹣2+(sin )﹣2+…+(sin )﹣2={#blank#}1{#/blank#}.
12=1
12﹣22=﹣3
12﹣22+32=6
12﹣22+32﹣42=﹣10
照此规律,第n个等式可为{#blank#}1{#/blank#}.
13=1 23=3+5 33=7+9+11 43=13+15+17+19
根据上述分解规律,则103的分解中最大的数是{#blank#}1{#/blank#}.
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