Math, asked by Bhawanbansal5460, 10 months ago

आव्यूह \begin{bmatrix}  1 & 1 & 1 \\  1 & 2 & -3 \\ 2 & -1 & 3 \end{bmatrix} के लिए दर्शाइए कि A2 - 6A + 5A +11 I = 0 हैI
इसकी सहायता से A-1 ज्ञात कीजिए।

Answers

Answered by amitnrw
3

Given :     A =      \begin{bmatrix}  1 & 1 & 1 \\  1 & 2 & -3 \\ 2 & -1 & 3 \end{bmatrix}

To Find :  दर्शाइए कि A² - 6A + 5A +11 I = 0 है

Solution:

 LHS  = A² - 6A + 5A + 11 I

= A² -  A + 11 I

A² = A . A

=> A² = \begin{bmatrix}  1 & 1 & 1 \\  1 & 2 & -3 \\ 2 & -1 & 3 \end{bmatrix} \begin{bmatrix}  1 & 1 & 1 \\  1 & 2 & -3 \\ 2 & -1 & 3 \end{bmatrix}

=> A² =  \begin{bmatrix}  4 & 2 & 1 \\  -3 & 8 & -14 \\ 7 & -3 & 14 \end{bmatrix}

I  =   \begin{bmatrix}  1 & 0 & 0 \\  0 & 1 & 0 \\ 0 & 0 & 1 \end{bmatrix}

11I =  \begin{bmatrix}  11 & 0 & 0 \\  0 & 11 & 0 \\ 0 & 0 & 11 \end{bmatrix}

A² -A +11 I  =

\begin{bmatrix}  4 & 2 & 1 \\  -3 & 8 & -14 \\ 7 & -3 & 14 \end{bmatrix}  - \begin{bmatrix}  1 & 1 & 1 \\  1 & 2 & -3 \\ 2 & -1 & 3 \end{bmatrix} + \begin{bmatrix}  11 & 0 & 0 \\  0 & 11 & 0 \\ 0 & 0 & 11 \end{bmatrix}

= \begin{bmatrix}  14 & 1 & 0 \\  -4 & 17 & -11 \\ 5 & -2 & 22 \end{bmatrix}

≠ 0

Mistake in data

और सीखें

निम्नलिखित सारणिकों के अवयवों के उपसारणिक एवं सहखण्ड ज्ञात कीजिए

brainly.in/question/16386652

दिए गए शीर्ष बिन्दुओं वाले त्रिभुजों का क्षेत्रफल ज्ञात कीजिए

brainly.in/question/16386350

A⁻¹

https://brainly.in/question/16386940

A⁻¹ ज्ञात कीजिए

https://brainly.in/question/16386935

Answered by Anonymous
1

Answer:

\huge\star\underline\pink{ANSWER}.

Step-by-step explanation:

 not \: equal \: to \:  zero \: mistake \: in \: data......

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