Permutation and Combination – Page 37

Verify-wether-f-is-invertible-f-x-1-2x-3-

Tinku Tara June 4, 2023 Permutation and Combination 0 Comments

Question Number 165376 by MikeH last updated on 31/Jan/22 $Verify wether f is invertible$ $f (x) = {(1 + 2 x)}^{3}$ Answered by Rasheed.Sindhi last updated on 31/Jan/22 $f (x) = {(1 + 2 x)}^{3}$ $${y}=\left(\mathrm{1}+\mathrm{2}{x}\right)^{\mathrm{3}} \…

Obtain-a-general-formula-for-the-sequence-2-3-4-5-8-9-16-17-32-33-assuming-the-sequence-continues-in-that-pattern-

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Question Number 165361 by MikeH last updated on 31/Jan/22 $Obtain a general formula for$ $the sequence$ $\frac{2}{3}, \frac{4}{5}, \frac{8}{9}, \frac{16}{17}, \frac{32}{33}, \dots$ $assuming the sequence continues in that$ $pattern .$ Commented by MJS_new last updated…

Question-164996

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Question Number 164996 by Mathematification last updated on 24/Jan/22 Answered by mr W last updated on 25/Jan/22 $A B = x_{1} + x_{2}$ $${AB}=\sqrt{\left(\mathrm{3}+\mathrm{2}\right)^{\mathrm{2}} −\left(\mathrm{3}−\mathrm{2}\right)^{\mathrm{2}} }+\sqrt{\left(\mathrm{2}+\mathrm{1}.\mathrm{5}\right)^{\mathrm{2}} −\left(\mathrm{4}.\mathrm{5}−\mathrm{2}\right)^{\mathrm{2}} }…

Question-99194

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Question Number 99194 by bemath last updated on 19/Jun/20 Answered by bramlex last updated on 19/Jun/20 $s u p p o s e p r o b a b i l i t y w i n o r d r a w o r l o s e a r e$ $s a m e i s \frac{1}{3}$ $n o t t o l o s e i n t h o s e t h r e e m a t c h e s$ $${case}\left(\mathrm{1}\right)\:\left(\mathrm{3}{w}\right)\Rightarrow\left(\frac{\mathrm{1}}{\mathrm{3}}\right)^{\mathrm{3}} =\:\frac{\mathrm{1}}{\mathrm{27}} \…

soit-K-un-corps-pour-toute-permutation-de-S-n-on-note-P-sa-matrice-dans-la-base-canonique-de-K-n-montrer-que-deux-permutations-1-et-2-sont-conjugues-dans-S-n-si-et-seulement-si-P-1

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Question Number 164588 by ArielVyny last updated on 19/Jan/22 $s o i t K u n c o r p s; p o u r t o u t e p e r m u t a t i o n$ $σ d e S_{n}, o n n o t e P (σ) s a m a t r i c e d a n s l a b a s e$ $c a n o n i q u e d e K^{n} .$ $m o n t r e r q u e d e u x p e r m u t a t i o n s σ_{1} e t σ_{2} s o n t$ $c o n j u g u e s d a n s S_{n} s i e t s e u l e m e n t s i$ $${P}\left(\sigma_{\mathrm{1}}…

prove-that-k-1-n-n-k-2-2n-n-2-1-

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Question Number 164544 by mr W last updated on 18/Jan/22 $p r o v e t h a t \underset{k = 1}{\sum^{n}} {(\begin{matrix} n \\ k \end{matrix})}^{2} = \frac{(2 n)!}{{(n!)}^{2}} - 1$ Answered by mindispower last updated on 18/Jan/22 $$=\underset{{k}=\mathrm{0}}…

Category: Permutation and Combination

Verify-wether-f-is-invertible-f-x-1-2x-3-

Obtain-a-general-formula-for-the-sequence-2-3-4-5-8-9-16-17-32-33-assuming-the-sequence-continues-in-that-pattern-

Question-164996

Question-99194

soit-K-un-corps-pour-toute-permutation-de-S-n-on-note-P-sa-matrice-dans-la-base-canonique-de-K-n-montrer-que-deux-permutations-1-et-2-sont-conjugues-dans-S-n-si-et-seulement-si-P-1

prove-that-k-1-n-n-k-2-2n-n-2-1-

NB-P-E-means-a-set-of-all-part-of-E-

Question-98405

Question-32600

algebra1ic-