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What is the correct shading rule when (5x-2y\le 10) is written in terms of (y)?असमानता (5x-2y\le 10) को (y) के रूप में लिखने पर सही शेडिंग नियम कौन-सा है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: above (y\ge \frac{5x-10}{2})(y\ge \frac{5x-10}{2}) के ऊपर
From (-2y\le 10-5x), reversing the sign gives (y\ge \frac{5x-10}{2}). The inequality sign changes when dividing by a negative.(-2y\le 10-5x) से चिन्ह पलटकर (y\ge \frac{5x-10}{2}) मिलता है। ऋणात्मक से भाग देने पर असमानता का चिन्ह बदलता है।
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