0.00...0125
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a×b=0.0000000.14016个0a÷b=0.015625如果是2008个0a×b=0.0000000.14013个小数位a÷b=15.625如果是2008个小数位
a+b=0.00000...01258(1984个)a-b=0.00000...01242(1984个)a*b=0.00000...1(3972个0)a/b=1250/8
a=0.00.0125(190个零)=1.25×10^(-191)b=0.00.008(191个零)=8×10^(-192)=0.8×10^(-191)∴a+b=2.05×10^(-191)=0.00
a=0.125e-1997b=8e-2001=0.0008e-1997a+b=(0.125+0.0008)e-1997=0.1258e-1997a-b=(0.125-0.0008)e-1997=0.1
0.00···0125(中间有100个0)×0.00···08(中间有100个0)=0.00...01000(小数点后有100+3+100+1=204位)=0.00...01(中间有204-4=200
a×b=0.00.01(3991个0)a÷b=0.125/0.8=5/32a+b=0.00.0925(1996个0)
∵a=0.00……0125【1997个0】=125×10^(-2000) b=0.00……08【2001个0】=0.08×10^(-2000) ∴a+b=125×10^(-2000)+0.08×10
0.000000000000000000000001
125X8=1000aXb的积应该有55+49=104位小数,而小数部分已经有了4位,所以前面有100个0即0.00……01(100个0)再问:有算式吗?再答:0.00...0125X0.00...0
1a=0.125*10^-50b=8*10^50a*b=1
a=12.5*10^(-10)b=8*10^(-10)a+b=20.5*10^(-10)=2.05*10^(-9)a-b=4*10^(-10)ab=100*10^(-20)=10^(-18)a/b=1
答:a=0.0000.00125(1996个0)a=1.25*10^(-1996)b=0.0000.008(2000个0)=8*10^(-2000)所以:ab=1.25*8*10^(-1996-200
a=1.25的-9次方,b=8的-10次方a/b=a÷b=1.25÷8×0.1=1/8×1/10=1/80
a+b=0.000..(2000个0)012508;b-a=-0.000.(2000个0)012492;再问:没看懂,请问有直接点的算式么?再答:a+b=1.2508×10^(-2001)+8×10^
a=0.00...0125b=8000...0a,b都是50个0求a*bab=0.00...0125*8000...0=0.125*80=10
参考答案:\x09好的生活就是不瞎想,做得多,要得少,常微笑,懂知足.
0.00...0133(2002个0)0.00...01(4006个0)15.625
0.0
A=0.00.0(2000个)0125B=0.00...0(2004个)08=0.00...0(2000个)000008A+B=0.00...0(2000个)012508A-B=0.00...0(20
a+b≈0a-b≈0a*b≈0a/b≈0毫无意义其实也很简单1,0.00.01258(有1996个0)2,0.00.01242(有1996个0)3,0.00.01(有3996个0)4,156.25