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17 Jul 2024, 08:17
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pranjalshah
guys.. you have any idea about this?
Verbal CR and quant questions could overlap.I would suggest to touch GMATPERP and GMATPREPFOCUS both only after you’re done with the mocks. There are plenty of other official questions available(especially for quant and verbal CR)
And in the end when you run out of practise questions, you can attempt the official mocks 1 and 2 multiple times. They have a huge question bank. So that’s probably enough practise
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17 Jul 2024, 10:15
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if-a-and-b-are-nonzero-constants-and-the-equation-ax2-5x-b-0-h-432650.html
can anyone explain this? I couldnt understand how b could be positive, as in a quadratic equation x^2 - (sum of roots) + product of roots, here b/a is postive right?
can anyone explain this? I couldnt understand how b could be positive, as in a quadratic equation x^2 - (sum of roots) + product of roots, here b/a is postive right?
17 Jul 2024, 10:25
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sum of roots = 5/a (it should be negative as sum of negative nos. is negative). So, a<0. Now, product of roots = -b/a (it should be positive as product of 2 negative nos. is positive). As a is negative, it follows that b is positive. Hope it explains.
