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LogicQuestion and Answers: Page 1

Question Number 217772 Answers: 1 Comments: 1

Where is the error (−1)=(−1)^1 =(−1)^(2/2) =[(−1)^2 ]^(1/2) =[1]^(1/2) =(√1) =1

$W h e r e i s t h e e r r o r$ $(- 1) = {(- 1)}^{1}$ $= {(- 1)}^{\frac{2}{2}}$ $= {[{(- 1)}^{2}]}^{\frac{1}{2}}$ $= {[1]}^{\frac{1}{2}}$ $= \sqrt{1}$ $= 1$

Question Number 213427 Answers: 0 Comments: 0

Question Number 212927 Answers: 1 Comments: 0

White horse≠horse and horse≠White horse Q:Are the above propositions equivalent?

$White horse \neq horse and horse \neq White horse$ $Q : Are the above propositions equivalent ?$

Question Number 208681 Answers: 2 Comments: 0

Question Number 208421 Answers: 0 Comments: 1

Question Number 208420 Answers: 2 Comments: 1

resoudre dans R^3 { ((x+y=3)),((y+z=5)) :}x+z=4

$r e s o u d r e d a n s R^{3}$ ${\begin{cases} x + y = 3 \\ y + z = 5 \end{cases} x + z = 4$

Question Number 208328 Answers: 0 Comments: 0

Question Number 208178 Answers: 5 Comments: 3

Question Number 207834 Answers: 1 Comments: 0

$\underset{⏟}{}$

Question Number 207456 Answers: 0 Comments: 0

Question Number 207455 Answers: 0 Comments: 0

Question Number 207381 Answers: 1 Comments: 0

Question Number 203428 Answers: 0 Comments: 0

$\underset{⏟}{}$

Question Number 203304 Answers: 0 Comments: 0

Question Number 202830 Answers: 1 Comments: 0

$\underset{⏟}{}$

Question Number 202749 Answers: 1 Comments: 3

Question Number 198750 Answers: 1 Comments: 0

Prove the following is a tautology: [(p⊻q)∧(p⇒r)]⇒(q⊻r)

$Prove the following is a tautology :$ $[(p ⊻ q) \land (p \Rightarrow r)] \Rightarrow (q ⊻ r)$

Question Number 198288 Answers: 1 Comments: 0

Question Number 196986 Answers: 1 Comments: 0

Prove that lim_(n→+∞) n∫^( 1) _( 0) e^(−nt(1−ln(1−t))) dt=(√(2π))

$Prove that$ $\underset{n \to + \infty}{\lim n} {\int_{0}}^{1} e^{- nt (1 - \ln (1 - t))} dt = \sqrt{2 π}$

Question Number 194406 Answers: 2 Comments: 0

Question Number 191231 Answers: 0 Comments: 1

Logic puzzle if 3621+22=10 7842+10=17 8223+13=29 1930+7 = 10 6624+11=?

$L o g i c p u z z l e$ $i f 3621 + 22 = 10$ $7842 + 10 = 17$ $8223 + 13 = 29$ $1930 + 7 = 10$ $6624 + 11 = ?$

Question Number 188924 Answers: 1 Comments: 0

Question Number 187776 Answers: 2 Comments: 0

Question Number 183644 Answers: 4 Comments: 1

Question Number 183583 Answers: 1 Comments: 1

Question Number 183480 Answers: 1 Comments: 1

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