A cubic polynomial is given as 2x 3 - x 2 + x - 5 = 0,
Question:
A cubic polynomial is given as 2x3 - x2 + x - 5 = 0, having roots α, β, γ.
a. Show that 2Sn+3 + Sn+1 – 5Sn = 0.
b. Find the value of S-2.
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a 2x3 x2 x 5 0 3x2 3x 5 0 9x 8 0 14x 10 0 S 24 S 25 S 26 S14 S21 S3 S4 S5 Endin...View the full answer
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Related Book For 
Cambridge International AS & A Level Further Mathematics Coursebook
ISBN: 9781108403375
1st Edition
Authors: Lee Mckelvey, Martin Crozier
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