Question Number 126723 by ajfour last updated on 23/Dec/20
Commented by prakash jain last updated on 23/Dec/20
$$\mathrm{Two}\:\mathrm{assumptions} \\ $$$${p}^{\mathrm{2}} +\mathrm{2}{pq}=\mathrm{1} \\ $$$${q}=\mathrm{2}{c} \\ $$$$\mathrm{You}\:\mathrm{are}\:\mathrm{substituting}\:\mathrm{a}\:\mathrm{given}\:\mathrm{value} \\ $$$$\mathrm{of}\:{x} \\ $$
Commented by ajfour last updated on 23/Dec/20
$$\mathcal{T}{hanks}\:{Sir}. \\ $$