The inequality is
.
Solve the inequality.
\Step 1:
\Since the radicand of a square root must be greaterthan or equal to zero, first solve
and
to identity the values of
for which the left side of the inequality is define.
Case(i):
\
(
radicand greater than or equals to zero)
(Subtract
from each side)
(Apply additive inverse property:
)
(Divide each side by
)
(Cancel common terms)
Case(ii):
\
(
radicand greater than or equals to zero)
(Subtract
from each side)
(Apply additive inverse property:
)
Step 2:
\
(Original inequality)
(Add
toeach side)
(Apply additive inverse property:
)
(Take square each side)
(Cancel square and root terms)
(Subtract
from each side)
(Apply additive inverse property:
)
(Subtract
from each side)
(Apply additive inverse property:
)
Step 3:
\It appears that
.
Check:
\Use three test values and make a table:
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Since is not a real number,the inequality is not satisfied. | \
Since is not a real number,the inequality is not satisfied. | \
Since ,the inequality is satisfied. | \
Thus, only values in the interval
satisfy the inequality.
Graph:
\The number line inequality is
\
The inequality solution set is
.