CBSE Class 10 Answered
Answer pls
Asked by origami & craft | 26 Mar, 2019, 11:45: AM
Expert Answer
if α, β and γ are roots of cubic polynomial ax3 +bx2 +cx +d = 0
then α+β+γ = - b/a, αβ +βγ +γα = c/a and αβγ = -d/a
Given cubic polynomial : 2x3 +7x2 -x +13 = 0
hence α+β+γ = -7/2 , αβ +βγ +γα = -1/2, αβγ = -13/2
Answered by Thiyagarajan K | 26 Mar, 2019, 12:39: PM
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