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The total number of integral points i.e. points having integral coordinates lying in the region represented by the inequations `|x-y| lt 3 " and " |x+y| lt 3` isA. 25B. 36C. 13D. 12 |
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Answer» Correct Answer - C It is evident from the Fig. 6 that there are 13 points in the region enclosed by `|x-y| lt 3 " and " |x+y| lt 3.` The coordinates of the points are `(-2, 0),(-1, 0), (0, 0),(1, 0),(2, 0),(0,1),(0, 2),(0, -1),(0, -2),(1,1), (-1, 1),(-1, 1) " and " (1, -1)` |
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