[(1+3)(1+3^2)(1+3^4)(1+3^8).(1+3^32)+1/2]3*3^2*3^3*……*3^10=多少?错了,应为[(1+3)(1+3^2)(1+3^4)(1+3^8).........(1+3^32)+1/2]/3*3^2*3^3*……*3^10=多少,中括号后少了个除号
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 17:40:55
![[(1+3)(1+3^2)(1+3^4)(1+3^8).(1+3^32)+1/2]3*3^2*3^3*……*3^10=多少?错了,应为[(1+3)(1+3^2)(1+3^4)(1+3^8).........(1+3^32)+1/2]/3*3^2*3^3*……*3^10=多少,中括号后少了个除号](/uploads/image/z/5490150-6-0.jpg?t=%5B%281%2B3%29%281%2B3%5E2%29%281%2B3%5E4%29%281%2B3%5E8%29.%281%2B3%5E32%29%2B1%2F2%5D3%2A3%5E2%2A3%5E3%2A%E2%80%A6%E2%80%A6%2A3%5E10%3D%E5%A4%9A%E5%B0%91%3F%E9%94%99%E4%BA%86%2C%E5%BA%94%E4%B8%BA%5B%281%2B3%29%281%2B3%5E2%29%281%2B3%5E4%29%281%2B3%5E8%29.........%281%2B3%5E32%29%2B1%2F2%5D%2F3%2A3%5E2%2A3%5E3%2A%E2%80%A6%E2%80%A6%2A3%5E10%3D%E5%A4%9A%E5%B0%91%2C%E4%B8%AD%E6%8B%AC%E5%8F%B7%E5%90%8E%E5%B0%91%E4%BA%86%E4%B8%AA%E9%99%A4%E5%8F%B7)
[(1+3)(1+3^2)(1+3^4)(1+3^8).(1+3^32)+1/2]3*3^2*3^3*……*3^10=多少?错了,应为[(1+3)(1+3^2)(1+3^4)(1+3^8).........(1+3^32)+1/2]/3*3^2*3^3*……*3^10=多少,中括号后少了个除号
[(1+3)(1+3^2)(1+3^4)(1+3^8).(1+3^32)+1/2]3*3^2*3^3*……*3^10=多少?
错了,应为[(1+3)(1+3^2)(1+3^4)(1+3^8).........(1+3^32)+1/2]/3*3^2*3^3*……*3^10=多少,中括号后少了个除号
[(1+3)(1+3^2)(1+3^4)(1+3^8).(1+3^32)+1/2]3*3^2*3^3*……*3^10=多少?错了,应为[(1+3)(1+3^2)(1+3^4)(1+3^8).........(1+3^32)+1/2]/3*3^2*3^3*……*3^10=多少,中括号后少了个除号
原式=[(1-3)(1+3)(1+3^2)(1+3^4)……(1+3^32)/(1-3)+1/2]/3^55
=[(1-3^64)/(-2)+1/2]/3^55
=(-1/2+3^64/2+1/2)/3^55
=3^9/2
=9841.5
题目不是很清楚