Question

Solve each of the following system of equations in R. 

 4x − 1 ≤ 0, 3 − 4x < 0 

Answer 1

\[\text{ We have }, 4x - 1 \leq 0\]
\[ \Rightarrow 4x \leq 1\]
\[ \Rightarrow x \leq \frac{1}{4} (\text{ Dividing both the sides by } 4)\]
\[ \Rightarrow x \in ( - \infty , \frac{1}{4}] . . . (i)\]
\[\text{ Also }, 3 - 4x < 0\]
\[ \Rightarrow 0 > 3 - 4x\]
\[ \Rightarrow 4x > 3\]
\[ \Rightarrow x > \frac{3}{4} \text{ Dividing both sides by } 4\]
\[ \Rightarrow x \in \left( \frac{3}{4}, \infty \right) . . . (ii)\]
\[\text{ Hence, the solution of the given set of inequalities is the intersection of } (i) \text{ and } (ii) . \]
\[\text{ But }, \left( - \infty \frac{1}{4} \right) \cap \left( \frac{3}{4}, \infty \right) = \phi\]
\[\text{ Thus, the given set of inequations has no solution } .\]