kaitlyn1152
19.05.2020 •
Mathematics
9. Given: line c ll line d
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Ответ:
x=38°
y=25°
z=117°
Step-by-step explanation:
Since line d is a line we can say that m<z=180 degrees -(38 degrees +25 degrees)
m<z=117°
Since line c ll line d
We can say that m<y=25°(Alternate interior angles)
We can say that m<x=38°(Alternate interior angles)
x=38°
y=25°
z=117°
Ответ:
1.first you prove it s injective then surjective -> bijective -> inversab
2 f-1:B-> A
.y=ln(x/x-2)
ln10^y=ln(x/x-2)
x/x-2=10^y
x=10^y*x-2*10^y
x-10^y*x=-2*10^y
x(1-10^y)= -2*10^y
x= -2*10^y/(1-10^y);
f-1(x)= -2*10^x/(1-10^x);