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1 answer:
The following inequality is graphed and attached accordingly:
-22 ≤ x ≤ 24
When two mathematical expressions that aren't equal to each other are brought together into one equation, it is called an inequality.
The inequality signs are:
≠
>
<
These are also referred to as inequality signs:
≤
≥
It is to be noted that zero "0" on the inequality graph is indicative of the fact that the value of x can be zero, greater than zero or less than zero, in which case, it takes on a negative polarity.
Learn more about inequalities at:
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Answer:
The sum of reciprocals is 2/3.
You don't need complex numbers to solve this, but if you try to find a and b you will need complex numbers.
Step-by-step explanation:
a+b = 2
a*b = 3
1/a + 1/b = x
(a*b)*(1/a + 1/b) = (a*b)x
b + a = (a*b)(x)
2 = 3x
x = 2/3
b = 2 - a
a*(2 - a) = 3
-a^2 + 2a = 3
-a^2 + 2a - 3 = 0
a^2 - 2a + 3 = 0
let's solve the quadratic equation
a^2 - 2a + 3 = a^2 - 2a + 1 + 2 = (a - 1)^2 + 2 = 0
(a - 1)^2 = -2
these options correspond to a and b from the original question.