pizzaqueen95
23.09.2019 •
Mathematics
If f(x)=2xsquared+3x-2/x+2 is continuous at x=-2, then f (-2)=
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Ответ:
f(x) = 2x-1
f(-2) = 2(-2)-1
f(-2) = -5
Ответ:
-16=b-12
+12 +12
-4=b
36
76=-4b
/-4 /-4
-19=b