
6(7+1)(7^2+1)(7^4+1)(7^8+1)+1
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6(7+1)(7^2+1)(7^4+1)(7^8+1)+1
=(7-1)(7+1)(7^2+1)(7^4+1)(7^8+1)+1
=(7²-1)(7^2+1)(7^4+1)(7^8+1)+1
=(7^4-1)(7^4+1)(7^8+1)+1
=(7^8-1)(7^8+1)+1
=7^16-1+1
=7^16
=(7-1)(7+1)(7^2+1)(7^4+1)(7^8+1)+1
=(7²-1)(7^2+1)(7^4+1)(7^8+1)+1
=(7^4-1)(7^4+1)(7^8+1)+1
=(7^8-1)(7^8+1)+1
=7^16-1+1
=7^16
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2023-08-01 广告
计算过程如下:首先,计算4个数值的和:∑Xs = 0.3 + 0.2 + 0.4 + 0.1 = 1然后,计算 lg-1(∑Xs/4):lg-1(∑Xs/4) = lg-1(1/4) = -1其中,lg表示以10为底的对数,即 log10。...
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展开全部
6(7+1)(7^2+1)(7^4+1)(7^8+1)+1
=(7-1)(7+1)(7^2+1)(7^4+1)(7^8+1)+1
=(7^2-1)(7^2+1)(7^4+1)(7^8+1)+1
=(7^4-1)(7^4+1)(7^8+1)+1
=(7^8-1)(7^8+1)+1
=7^16-1+1
=7^16
=(7-1)(7+1)(7^2+1)(7^4+1)(7^8+1)+1
=(7^2-1)(7^2+1)(7^4+1)(7^8+1)+1
=(7^4-1)(7^4+1)(7^8+1)+1
=(7^8-1)(7^8+1)+1
=7^16-1+1
=7^16
追问
(-5)^100+(-5)^99
追答
(-5)^100+(-5)^99
=[(-5)^1+1]*(-5)^99
=4*5^99
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展开全部
6(7+1)(7^2+1)(7^4+1)(7^8+1)+1
=(7-1)(7+1)(7^2+1)(7^4+1)(7^8+1)+1
=(7²-1)(7^2+1)(7^4+1)(7^8+1)+1
=(7^4-1)(7^4+1)(7^8+1)+1
=(7^8-1)(7^8+1)+1
=7^16-1+1
=7^16
=(7-1)(7+1)(7^2+1)(7^4+1)(7^8+1)+1
=(7²-1)(7^2+1)(7^4+1)(7^8+1)+1
=(7^4-1)(7^4+1)(7^8+1)+1
=(7^8-1)(7^8+1)+1
=7^16-1+1
=7^16
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