CBSE Class 10 Answered
if a,b the zeroes of thew polynomials 2xsq +5x =1 then the value of a+b+ab will be what
Asked by vikramsingh | 16 May, 2013, 11:35: PM
Expert Answer
f(x) = 2xsq +5x -1
Sum of roots = a+b = -5/2
Product of roots = ab = -1/2
hence, a+b+ab = -5/2-1/2 = 3
Answered by | 17 May, 2013, 06:18: AM
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