Which of the following is equivalent to
Created: 2 years ago |
Updated: 2 years ago
best des
দেয়া আছে, a - b ≥ a + b
⇒a - b - a - b ≥ a + b - a - b [উভইপক্ষে - (a + b) যোগ করে]
⇒ - 2b ≥ 0
⇒2b ≤0
[উভয়পক্ষে – 1 দ্বারা গুণ করে]
.:. b ≤0
⇒a - b - a - b ≥ a + b - a - b [উভইপক্ষে - (a + b) যোগ করে]
⇒ - 2b ≥ 0
⇒2b ≤0
[উভয়পক্ষে – 1 দ্বারা গুণ করে]
.:. b ≤0
Md Azizur Rahman
Founder of Satt
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