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if a,b are the roots of x 2 +px+q=0, and w is a cube root of unity, then the value of (wa+w 2 b)(w 2 a+wb) is a) p2 b) 3q c) p 2 -3q d) p 2 +3q

if a,b are the roots of x2+px+q=0, and w is a cube root of unity, then the value of (wa+w2b)(w2a+wb) is


a) p2


b) 3q


c) p2-3q


d) p2+3q

Grade:

3 Answers

SAGAR SINGH - IIT DELHI
879 Points
11 years ago

Dear student,

The correct option is d)

pranshu aggarwal
12 Points
11 years ago

sir plz give solution also

jagdish singh singh
173 Points
11 years ago

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