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Root(s) of the equation belonging to the domain of definition of the function is/are:
MATHEMATICS · Single correct · ISC · Mathematics · Algebra · Algebra
Problem
Root(s) of the equation
9
x
2
−
18
∣
x
∣
+
5
=
0
9x^2 - 18|x| + 5 = 0
9
x
2
−
18∣
x
∣
+
5
=
0
belonging to the domain of definition of the function
f
(
x
)
=
log
(
x
2
−
x
−
2
)
f(x) = \log(x^2 - x - 2)
f
(
x
)
=
lo
g
(
x
2
−
x
−
2
)
is/are: (a)
−
5
3
,
−
1
3
-\frac{5}{3}, -\frac{1}{3}
−
3
5
,
−
3
1
(b)
5
3
,
1
3
\frac{5}{3}, \frac{1}{3}
3
5
,
3
1
(c)
−
5
3
-\frac{5}{3}
−
3
5
(d)
−
1
3
-\frac{1}{3}
−
3
1
Related theory
Logarithmic Functions
Non-Linear Equations
Special Functions
Quadratic and rational inequalities
Algebra
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