If 1 is a root of the equations ay² + ay + 3 = 0 and y² + y + b = 0, then ab equals :

-3

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-7/2

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Solution

The correct option is D
3

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Similar questions

If 1 is a root of the equations $a y^{2} + a y + 3 = 0$ and $y^{2} + y + b = 0$ then ab equals :

a y^{2} + a y + 3 = 0 and y^{2} + y + b = 0

1

a y^{2} + a y + 3 = 0

y^{2} + y + b = 0

a b

a y^{2} + a y + 3 = 0

y^{2} + y + b = 0

If 1 is the root of equation ay^2+at+3=0 and y^2+y+b=0. Find 'a' and 'b'.

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