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anasteyshagrey
@anasteyshagrey
July 2022
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ПОМОГИТЕ РЕШИТЬ!!!!
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dasdasfa
1) x/90=(10/3)^log(x) 300
x/90=(10*30 /(3*30))^log)x) 300; x>0; x≠≠1
x/90=(300/90)^log(x) 300
x=300 а вот есть еще корни, надо подумать!
3)f(x)=(x+4) /(x-2)
f(0)=4/(-2)=-2 (0;-2)-точка касания
y=f(a)+f'(a) *(x-a)-уравнение касательной
f'(x)=(x+4) /(x-2))'=((x+4)'(x-2) - (x-2)'(x+4)) /(x-2)^2=(x-2-x-4) /(x-2)^2=
=-6/(x-2)^2;
f'(0)=-6/4=-3/2
y=-2-1,5 * (x-0); y=-1,5x-2
----------------
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Answers & Comments
x/90=(10*30 /(3*30))^log)x) 300; x>0; x≠≠1
x/90=(300/90)^log(x) 300
x=300 а вот есть еще корни, надо подумать!
3)f(x)=(x+4) /(x-2)
f(0)=4/(-2)=-2 (0;-2)-точка касания
y=f(a)+f'(a) *(x-a)-уравнение касательной
f'(x)=(x+4) /(x-2))'=((x+4)'(x-2) - (x-2)'(x+4)) /(x-2)^2=(x-2-x-4) /(x-2)^2=
=-6/(x-2)^2;
f'(0)=-6/4=-3/2
y=-2-1,5 * (x-0); y=-1,5x-2
----------------