“(1+1/4)(1+1/4的平方)(1+1/4的4次方)(1+1/4的8次方)+1/3×4的15次方”的解答过程,
问题描述:
“(1+1/4)(1+1/4的平方)(1+1/4的4次方)(1+1/4的8次方)+1/3×4的15次方”的解答过程,
答
1+2+3+...+101
=(1+101)×101/2
=5151
答
(1+1/4)(1+1/4的平方)(1+1/4的4次方)(1+1/4的8次方)+1/3×4的15次方
=4/3*(1-1/4)(1+1/4)(1+1/4的平方)(1+1/4的4次方)(1+1/4的8次方)+1/3×4的15次方
=4/3(1-1/4²)(1+1/4的平方)(1+1/4的4次方)(1+1/4的8次方)+1/3×4的15次方
=..
=4/3(1-1/4的16次方)+1/3x4的15次方
=4/3-1/3x4的15次方+1/3x4的15次方
=4/3
如果本题有什么不明白可以追问,