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Prove that f(x) = ={:( ax^(2) -3x+ 4 " ...

Prove that f(x) = ` ={:( ax^(2) -3x+ 4 " when "xlt 1 ),( 3" when "x=1 ),( bx+ 5" when " xgt 1) :}and "if" Lim _( xto 1) f(x) =f(1) "then find the values of a and b." `

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