Grade 12th passAlgebra
if a polynomial f(x)=4x^4-ax^3+bx^2-cx+5 (a,b,c belongs to R) has 4 positive real roots r1,r2,r3,r4 such that r1/2+r2/4+r3/5+r4/8+1 the the value of a is (1)20 (2)21 (3)19 (4) 22. single correct
if a polynomial f(x)=4x^4-ax^3+bx^2-cx+5 (a,b,c belongs to R) has 4 positive real roots r1,r2,r3,r4 such that r1/2+r2/4+r3/5+r4/8+1 the the value of a is (1)20 (2)21 (3)19 (4) 22. single correct
