Matrices and Determinants – Page 11

Find-an-orthogonal-matrix-A-whose-first-row-is-u-1-1-3-2-3-2-3-

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Question Number 116746 by bemath last updated on 06/Oct/20 $Find an orthogonal matrix A whose$ $first row is u_{1} = (\frac{1}{3}, \frac{2}{3}, \frac{2}{3}) .$ Answered by john santu last updated on 06/Oct/20 $${First}\:{step}\:{find}\:{a}\:{nonzero}\:{vector}\: \…

Solving-by-Gaussian-elimination-using-the-following-system-of-linear-equation-x-3y-2z-6-2x-4y-3z-8-3x-6y-8z-5-

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Question Number 116695 by bemath last updated on 06/Oct/20 $Solving by Gaussian elimination$ $using the following system of$ $linear equation {\begin{cases} x - 3 y - 2 z = 6 \\ 2 x - 4 y - 3 z = 8 \\ - 3 x + 6 y + 8 z = - 5 \end{cases}$ Answered by bobhans last updated on 06/Oct/20 $$\:\mathrm{Solving}\:\mathrm{by}\:\mathrm{Gaussian}\:\mathrm{elimination}\:\mathrm{using} \…

Question-116669

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Question Number 116669 by Eric002 last updated on 05/Oct/20 Commented by Eric002 last updated on 05/Oct/20 $d \overset{´}{e m o n t r e r} q u e l e s t r i a n g l e s A B C e t I J K$ $o n t l e m \hat{e m e} c e n t r e d e g r a v i t \overset{´}{e}$ Answered…

solve-for-x-determinant-1-x-x-2-x-3-1-2-2-2-2-3-1-3-3-2-3-3-1-4-4-2-4-3-0-

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Question Number 116578 by bobhans last updated on 05/Oct/20 $solve for x$ $| \begin{matrix} 1 x x^{2} x^{3} \\ 1 2 2^{2} 2^{3} \\ 1 3 3^{2} 3^{3} \\ 1 4 4^{2} 4^{3} \end{matrix} | = 0$ Answered by bemath…

A-a-b-c-2-3-6-0-2-5-and-B-1-2-4-0-3-9-1-2-2-A-B-1-3-1-8-d-31-5-4-e-find-the-missing-value-

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Question Number 182050 by ali009 last updated on 03/Dec/22 $A = [\begin{matrix} a & b & c \\ - 2 & 3 & 6 \\ 0 & - 2 & 5 \end{matrix}] a n d B = [\begin{matrix} 1 & 2 & 4 \\ 0 & 3 & 9 \\ - 1 & 2 & 2 \end{matrix}]$ $A \times B = [\begin{matrix} - 1 & 3 & - 1 \\ - 8 & d & 31 \\ - 5 & 4 & e \end{matrix}] f i n d t h e m i s s i n g v a l u e$ Answered by cortano1 last updated on 04/Dec/22 $[\begin{matrix} a b c \\ - 2 3 6 \\ 0 - 2 5 \end{matrix}] [\begin{matrix} 1 2 4 \\ 0 3 9 \\ - 1 2 2 \end{matrix}] =$ $$\:\: $[\begin{matrix} a - c 2 a + 3 b + 2 c 4 a + 9 b + 2 c \\ - 8 17 31 \\ - 5 4 - 8 \end{matrix}]$ = \…

0-1-0-1-cos-1-xy-sin-1-xy-ln-xy-dxdy-

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Question Number 181836 by alcohol last updated on 01/Dec/22 $\int_{0}^{1} \int_{0}^{1} \frac{{c o s}^{- 1} (x y) {s i n}^{- 1} (x y)}{l n (x y)} d x d y$ Terms of Service Privacy Policy Contact: info@tinkutara.com

25-x-4-x-9-x-fimd-x-

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Question Number 181573 by alcohol last updated on 26/Nov/22 $25^{x} - 4^{x} = 9^{x}$ $f i m d x$ Commented by mr W last updated on 26/Nov/22 $$\mathrm{5}−\mathrm{2}=\mathrm{3}…

Given-matrix-A-a-1-1-1-a-1-1-1-a-If-B-b-A-and-B-is-orthogonal-determine-value-of-a-and-b-

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Question Number 115520 by bemath last updated on 26/Sep/20 $G i v e n m a t r i x A = (\begin{matrix} a 1 1 \\ 1 a 1 \\ 1 1 a \end{matrix})$ $I f B = b . A a n d B i s o r t h o g o n a l$ $d e t e r m i n e v a l u e o f a a n d b .$ Answered by bobhans last updated on 26/Sep/20 $${B}\:=\: $(\begin{matrix} a b b b \\ b a b b \\ b b a b \end{matrix})$ \:\:\Rightarrow\:\left({ab}\right)^{\mathrm{2}} +{b}^{\mathrm{2}}…

If-determinant-a-a-2-1-a-3-b-b-2-1-b-3-c-c-2-1-c-3-0-a-b-c-a-b-c-

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Question Number 115508 by bemath last updated on 26/Sep/20 $I f | \begin{matrix} a a^{2} 1 + a^{3} \\ b b^{2} 1 + b^{3} \\ c c^{2} 1 + c^{3} \end{matrix} | = 0$ $a \neq b \neq c \to {\begin{cases} a = ? \\ b = ? \\ c = ? \end{cases}$ Answered by bobhans last updated…

Find-number-of-skew-symmetric-matrices-of-order-3-3-in-which-all-non-diagonal-elements-are-different-and-belong-to-the-set-9-8-7-7-8-9-

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Question Number 180855 by srikanth2684 last updated on 18/Nov/22 $F i n d n u m b e r o f s k e w s y m m e t r i c$ $m a t r i c e s o f o r d e r 3 \times 3 i n w h i c h$ $a l l n o n d i a g o n a l e l e m e n t s a r e$ $d i f f e r e n t a n d b e l o n g t o t h e$ $s e t {- 9, - 8, - 7, \dots, 7, 8, 9} .$ Terms of Service Privacy Policy…

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