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2. x2 + bx + ( b / 2)2 + c – ( b / 2)2 Completing square for quadratic equation/function
3. (x – a)(x –b) = 0 (THEN EXPAND) a and b are roots of quadratic equation
4. Price Index, I = Pspecific year x 100 P base year
5. Composite Index, = Sum of ( I x weightage) Sum of weightage
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Find root for quadratic equationFind value of x/y for simultaneous equation
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