villafana36
26.08.2019 •
Mathematics
What is the range of the following function: f(x)=-x^2+x^-1 if the domain is {-2, -1, 1}
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Ответ:
f(x)= -x^2 + x^-1
f(-2)= - (-2)^2 + (-2)^-1 = -4 - 1/2 = -9/2
f(-1)= - (-1)^2 + (-1)^-1 = -1 -1 = -2
f(1) = - (1)^2 + (1)^-1 = -1 +1 = 0
The range is { -9/2, -2, 0}
Ответ:
Solve:
12-1(-8). -1*-8= 8
12+8=20