If a+b+c = 6, bc+ca+ab = 11, abc = 6. Then find the value of 1-a-b-c?

Dear Student,

Please find below the solution to the asked query :
$$\begin{gathered} \mathrm{a}+\mathrm{b}+\mathrm{c}=6 \\ \mathrm{bc}+\mathrm{ac}+\mathrm{ab} = 11 \\ \mathrm{and} \mathrm{abc} = 6 \\ \mathrm{So} 1-\mathrm{a}-\mathrm{b}-\mathrm{c} \\ = 1-\left(\mathrm{a}+\mathrm{b}+\mathrm{c}\right) \\ =1-6 \\ = -5 \\ \mathrm{But} \mathrm{i} \mathrm{think} \mathrm{your} \mathrm{question} \mathrm{is} \mathrm{different} \mathrm{please} \mathrm{recheck} \mathrm{it}. \end{gathered}$$


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