5. If 1 is a root of the equations ay2 + ay + 3 = 0 and y2 + y + b = 0, then ab equals: A) 3 B) -7/2 C) 6 D) -3
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As 1 is zero of both the equations, it means that it must be satisfying both the equations. So, we get b as – 2. So, we get the product of a and b as 3. So, the correct answer is “Option (a)”.
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this is answer for your question option (A)
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