Railway Exam » Railway Exam Study Materials » Reasoning » Inequalities In Reasoning

Inequalities In Reasoning

Inequality is a part of everyday life. We see them everywhere we go, from the grocery store to the bank. Know more about the concept in this article.

Inequality is a part of everyday life. We see them everywhere we go, from the grocery store to the bank. It’s important to understand what inequalities are and how to solve them. In this article, we will discuss what inequalities are and how to solve them. We’ll also provide examples so that you can see how these concepts work in the real world. Let’s get started!

What are Inequalities in Reasoning?

In mathematics, inequalities are relations between two values that state that the left-hand side is smaller than or greater than the right-hand side. They can be expressed by a mathematical statement that says one quantity is larger or smaller than another. Examples of Inequalities Equations include x+y≠z; x≤y and y≥x.

Inequalities can be used to solve problems in mathematics, science and everyday life situations. They are important because they help us understand how the world works and how we can improve it. Inequalities are also a foundation for more complex mathematical concepts.

There are two types of inequalities: linear and nonlinear. Linear inequalities are equations that can be graphed on a coordinate plane. The graph will be a line and the equation will use the following format: y=mx+b, where m is the slope of the line and b is the y-intercept.

Nonlinear inequalities are equations that cannot be graphed on a coordinate plane. They will usually involve radicals (square roots) or absolute values.

To solve inequalities, we use the following steps:

  1. Identify the type of inequality. This can be done by looking at the equation and seeing if it is linear or nonlinear.

  2. Graph the equation on a coordinate plane if it is a linear inequality.

  3. Solve for x. This can be done by using substitution or elimination. Substitution is used when you have an equation with two variables and elimination is used when there are more than two variables but at least one of them will cancel out (e.g., x+y=z).

  4. Graph the solution set on the coordinate plane and shade in the area that satisfies the inequality.

To solve nonlinear inequalities, we must first identify which type of nonlinear equation it is (e.g., square root or absolute value). After this step has been completed, you can follow steps two through four listed above for linear inequalities.

Solving Inequalities

When solving an inequality, it is important to remember the following:

  1. The sign of the answer will always be positive or negative. This means that if both sides of an equation are divided by a negative number, then one side must remain positive and the other must remain negative. If only one side remains positive while both sides remain negative, then the original inequality was wrong.

  2. The sign of the answer will always be greater than or less than zero. This means that if both sides of an equation are divided by a negative number, then one side must remain positive and the other must remain negative. If only one side remains positive while both sides remain negative, then the original inequality was wrong.

  3. When solving for x, the answer will always be a real number. This means that there is no such thing as an imaginary solution to inequality.

To help understand how inequalities work, let’s solve some examples:

Example #01: x+y≠z

This equation states that the sum of x and y is not equal to z. This can be written as inequality by saying that x+y is greater than or less than z.

Solution: Graph the equation on a coordinate plane and shade in the area that satisfies the inequality. The shaded region will be everything that is Greater Than or Equal To z.

Example #02: x≤y and y≥x

This equation states that x is less than or equal to y and y is greater than or equal to x. This can be written as two separate inequalities by saying that x is Less Than y and Greater Than x, or that y is Greater Than or Equal To x.

Solution: Graph the two equations on a coordinate plane and shade in the area that satisfies the inequality. The shaded region will be everything that is Greater Than or Equal To z.

Example #03: x^y=z

This equation states that x raised to the power of y equals z. To solve this as an inequality, we must first take the square root of both sides.

Solution: After taking the square roots of both sides, we can solve for x by using substitution. Let’s say that y=x+h, where h is a small number (e.g., 0.01). This means that z=x^(x+h) and x=(x+h)^(x+h). If h=0.01, then x=(0.99)^(0.99), or approximately 0.3746390693 and y= (x+h)= 0.3846390693.

Conclusion

The disparities in the distribution of wealth between different social classes are not limited to just one country. These inequalities exist all over the world, and they have implications for how people live their lives on a day-to-day basis. One study found that children born into lower socioeconomic status households tend to do worse academically than those from wealthier families due to lack of access to resources like books or high-quality education. It is why we must work together globally for equality because no matter where you come from, everyone deserves an equal opportunity at success. Do you know any students who are struggling with this inequality?