Question Number 161513 by Gbenga last updated on 19/Dec/21
$$\boldsymbol{{find}}\:\boldsymbol{{the}}\:\boldsymbol{{value}}\:\boldsymbol{{of}} \\ $$$$−\mathrm{1}−\mathrm{1}/\mathrm{3}^{\mathrm{2}} −\mathrm{1}/\mathrm{5}^{\mathrm{2}} −\mathrm{1}/\mathrm{7}^{\mathrm{2}} −... \\ $$