已知:实数a.b.c满足|a+1|+(3b+1)^2+|c-2|=0,使求:(3ab)^2乘以(-a^2c)^3乘以(6ab^2)^2的值拜托各�
问题描述:
已知:实数a.b.c满足|a+1|+(3b+1)^2+|c-2|=0,使求:(3ab)^2乘以(-a^2c)^3乘以(6ab^2)^2的值拜托各�
答
因为|a+1|≥0,(3b+1)^2≥0,|c-2|≥0,而|a+1|+(3b+1)^2+|c-2|=0,故|a+1|=0,(3b+1)^2=0,|c-2|=0,即a=-1,b=-(1/3),c=2,所以(3ab)^2*(-a^2c)^3*(6ab^2)^2=(3*-1*-(1/3))^2*(1^(2*2))*(6*-1*-(1/3)^2)^2=1*1(-2/3)^2=4/9