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Category: Algebra

Question-106314

Question Number 106314 by Study last updated on 04/Aug/20 Answered by bemath last updated on 04/Aug/20 $$\mathrm{GP}\:\Rightarrow\mathrm{S}\:=\:\frac{\mathrm{1}}{\mathrm{1}−\left(−\mathrm{1}\right)}\:=\:\frac{\mathrm{1}}{\mathrm{2}} \\ $$$$\mathrm{1}+\mathrm{1}.\left(−\mathrm{1}\right)+\mathrm{1}\left(−\mathrm{1}\right)^{\mathrm{2}} +\mathrm{1}\left(−\mathrm{1}\right)^{\mathrm{3}} +… \\ $$ Commented by…

solve-2-5x-20-1-

Question Number 171841 by Mikenice last updated on 21/Jun/22 $${solve}: \\ $$$$\mathrm{2}^{\left(\mathrm{5}{x}−\mathrm{20}\right)} =\mathrm{1}! \\ $$ Answered by puissant last updated on 23/Jun/22 $$\Rightarrow\:\left(\mathrm{5}{x}−\mathrm{20}\right){ln}\mathrm{2}\:=\:\mathrm{0} \\ $$$$\Rightarrow\:\mathrm{5}{x}−\mathrm{20}=\mathrm{0}…