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This is a silly question but due to tension I am not able to figure this out. (-1-2)^2 according to the formula should be = 1 + 4 - 4 = 1 But the answer is 9. Where am I wrong? |
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Answer» This is a silly question but due to tension I am not able to figure this out. (-1-2)^2 according to the formula should be = 1 + 4 - 4 = 1 But the answer is 9. Where am I wrong? |
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