已知(x-1)²=4,求x的值。

已知(x-1)²=4,求x的值。


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2、求f(x)=x sin(2x-1)在0附近的最小值,相应的命令是()。A.[x,fval] = fminbnd(@(x) x*sin(2*x-1),0,0.5)B.[x,fval] = fminsearch(@(x) x*sin(2*x-1),0)C.[x,fval] = fminsearch(@(x) x*sin(2*x-1),0.5)D.[x,fval] = fminunc(@(x) x*sin(2*x-1),0)

求f(x)=x sin(2x-1)在0附近的最小值,相应的命令是()。A.[x,fval] = fminbnd(@(x) x*sin(2*x-1),0,0.5)B.[x,fval] = fminsearch(@(x) x*sin(2*x-1),0)C.[x,fval] = fminsearch(@(x) x*sin(2*x-1),0.5)D.[x,fval] = fminunc(@(x) x*sin(2*x-1),0)

求f(x)=x sin(2x-1)在0附近的最小值,相应的命令是()。A.[x,fval]=fminbnd(@(x) x*sin(2*x-1),0,0.5)B.[x,fval]=fminbnd(@(x) x*sin(2*x-1),0)C.[x,fval]=fminsearch(@(x) x*sin(2*x-1),[0,0.5])D.[x,fval]=fminunc(@(x) x*sin(2*x-1),[0,0.5])