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Solve the following equations by inversion method. 2x + 6y = 8, x + 3y = 5

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प्रश्न

Solve the following equations by inversion method.

2x + 6y = 8, x + 3y = 5

बेरीज
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उत्तर

The given equations can be written in the matrix form as:

`[(2,6),(1,3)][("x"),("y")]=[(8),(5)]`

This is of the form AXB, where

A = `[(2,6),(1,3)]`, X = `[("x"),("y")]` and B = `[(8),(5)]`

Let us find A−1

|A| = `[(2,6),(1,3)]` = 6 − 6 = 0

∴ A−1 does not exist.

Hence, x and y do not exist.

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पाठ 2: Matrics - Exercise 2.3 [पृष्ठ ५९]

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