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Question

If α and β are roots of the quadratic equation 3x2+3x+2=0 then α3+β3=.......

A
13
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B
1
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C
1
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D
None of the above
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Solution

The correct option is B 1
a=3,b=3,c=2
α+β=1,αβ=23
α3+β=(1)33×23×(1)
=1+2=1

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