Category: Logic

Question Number 207456 by efronzo1 last updated on 16/May/24 Terms of Service Privacy Policy Contact: info@tinkutara.com

Question Number 203428 by cortano12 last updated on 19/Jan/24 $$\cancel{\underbrace{}}$$ Terms of Service Privacy Policy Contact: info@tinkutara.com

Question Number 202830 by dimentri last updated on 04/Jan/24 $$\cancel{\underbrace{}}$$ Answered by mr W last updated on 04/Jan/24 $$lcm(3,5,7,9)=5\times 7\times 9=315$$$$\Rightarrow{n}=\mathrm{315}{k}−\mathrm{1} \…

Question Number 198750 by depressiveshrek last updated on 24/Oct/23 $$\mathrm{Prove}\mathrm{the}\mathrm{following}\mathrm{is}\mathrm{a}\mathrm{tautology}:$$$$[(p⊻q)\wedge (p\Rightarrow r)]\Rightarrow (q⊻r)$$ Answered by MathematicalUser2357 last updated on 29/Dec/23 $$\mathrm{Only}\mathrm{know}\mathrm{until}$$$$=\sim\left[\left({p}\veebar{q}\right)\wedge\left(\sim{p}\vee{r}\right)\right]\vee\left({q}\veebar{r}\right) \…

Question Number 198288 by Safojon last updated on 16/Oct/23 Answered by mr W last updated on 17/Oct/23 $$4+a=a\cosh \frac{b}{2a}$$$$11=a\sinh \frac{b}{2a}$$$$\left(\mathrm{4}+{a}\right)^{\mathrm{2}} −\mathrm{11}^{\mathrm{2}} ={a}^{\mathrm{2}} \…