化简 2^(x+1)/2^(1-x) [(2a)^-1b^3]^2 2^5/2 化简2^(x+1)/2^(1-x)[(2a)^-1b^3]^2 2^5/2
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![化简 2^(x+1)/2^(1-x) [(2a)^-1b^3]^2 2^5/2 化简2^(x+1)/2^(1-x)[(2a)^-1b^3]^2 2^5/2](/uploads/image/z/758214-54-4.jpg?t=%E5%8C%96%E7%AE%80+2%5E%28x%2B1%29%2F2%5E%281-x%29+%5B%282a%29%5E-1b%5E3%5D%5E2+2%5E5%2F2+%E5%8C%96%E7%AE%802%5E%28x%2B1%29%2F2%5E%281-x%29%5B%282a%29%5E-1b%5E3%5D%5E2+2%5E5%2F2)
化简 2^(x+1)/2^(1-x) [(2a)^-1b^3]^2 2^5/2 化简2^(x+1)/2^(1-x)[(2a)^-1b^3]^2 2^5/2
化简 2^(x+1)/2^(1-x) [(2a)^-1b^3]^2 2^5/2
化简
2^(x+1)/2^(1-x)
[(2a)^-1b^3]^2
2^5/2
化简 2^(x+1)/2^(1-x) [(2a)^-1b^3]^2 2^5/2 化简2^(x+1)/2^(1-x)[(2a)^-1b^3]^2 2^5/2
(1)2^(x+1)/2^(1-x)=2^[(x+1)-(x-1)]=2^2=4
(2) [(2a)^-1b^3]^2=b^6/(4a^2)
(3) 2^5/2 =2^(5-1)=2^4=16
2^(x+1)/2^(1-x)
=2^(x+1-1+x)=2^(2x)
2^(x+1)/2^(1-x)
=2^[(x+1)-(1-x)]
=2^(2x)
[(2a)^-1b^3]^2
=(2a)^(-2)×b^6
2^5/2
=2^(5-1)
=2^4
2^(x+1)/2^(1-x)=2^(x+1-(1-x))=2^(2x)=4^x;
[(2a)^-1b^3]^2 =(a^-1)(b^6)/2;
2^5/2=2^(5-1)=2^4=16
1、都是2的指数,所以直接计算指数:(x+1)-(1-x)=2x ,所以得到:2^(2x)=4^x
2、指数2乘以括号内各项的指数,最后化简为:b^6/(2a)^2=b^6/4a^2
3、2^4 =16