7-12  ʹsimplifyзźļ򻯡
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>> syms x
>> fun1=(1/x+5/x^2+9/x+2)^(1/4)
 fun1 =
 (10/x+5/x^2+2)^(1/4)
>> sfy1=simplify(fun1)
 sfy1 =
 ((10*x+5+2*x^2)/x^2)^(1/4)
>>  sfy2=simplify(sfy1)
 sfy2 =
 ((10*x+5+2*x^2)/x^2)^(1/4)
>> simplify(sin(x)^2 + cos(x)^2)
 ans =
 1
>>
