The procedure to solve a polynomial or rational inequality may be applied to all inequalities of the f ( x ) > 0 , f ( x ) < 0 , f ( x ) ≥ 0 and f ( x ) ≤ 0 . That is, find the real solutions to the related equation and determine restricted values of x . Then determine the sign of f ( x ) on each interval defined by the boundary points. Use this process to solve the inequalities in Exercises 109–120 1 x − 2 − 4 ≤ 0
The procedure to solve a polynomial or rational inequality may be applied to all inequalities of the f ( x ) > 0 , f ( x ) < 0 , f ( x ) ≥ 0 and f ( x ) ≤ 0 . That is, find the real solutions to the related equation and determine restricted values of x . Then determine the sign of f ( x ) on each interval defined by the boundary points. Use this process to solve the inequalities in Exercises 109–120 1 x − 2 − 4 ≤ 0
Solution Summary: The author calculates the solution of the inequality 1sqrtx-2-4le 0 by dividing the x-axis into intervals defined by the boundary points.
The procedure to solve a polynomial or rational inequality may be applied to all inequalities of the
f
(
x
)
>
0
,
f
(
x
)
<
0
,
f
(
x
)
≥
0
and
f
(
x
)
≤
0
. That is, find the real solutions to the related equation and determine restricted values of x. Then determine the sign of
f
(
x
)
on each interval defined by the boundary points. Use this process to solve the inequalities in Exercises 109–120
I want to learn this topic l dont know anything about it
Solve the linear system of equations attached using Gaussian elimination (not Gauss-Jordan) and back subsitution.
Remember that:
A matrix is in row echelon form if
Any row that consists only of zeros is at the bottom of the matrix.
The first non-zero entry in each other row is 1. This entry is called aleading 1.
The leading 1 of each row, after the first row, lies to the right of the leading 1 of the previous row.
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