Question

If a=1/9-4 root 5 and b=1/9+4 root 5 , then find the value of a^2+b^2 and a^3+b^3

Answer 1

Answer:

Important Notes:

– A quadratic equation is in the form ax2 +bx +c =0

– To find the nature of roots, first find determinant “D”

– D = b2 – 4ac

– If D > 0, equation has real and distinct roots

– If D < 0, equation has no real roots

– If D = 0, equation has 1 root

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