मराठी

If a/b = c/d, prove that (4a + 9b)/(4a - 9b) = (4c + 9d)/(4c - 9d). - Mathematics

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प्रश्न

If `a/b = c/d`, prove that `(4a + 9b)/(4a - 9b) = (4c + 9d)/(4c - 9d)`.

सिद्धांत
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उत्तर

`a/b = c/d`

Multiply the numerator by 4 and the denominator by 9 on both sides:

`(4a)/(9b) = (4c)/(9d)`

Apply Componendo and Dividendo,

`(4a + 9b)/(4a - 9b) = (4c + 9d)/(4c - 9d)`

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पाठ 7: Ratio and proportion - Exercise 7C [पृष्ठ १३८]

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नूतन Mathematics [English] Class 10 ICSE
पाठ 7 Ratio and proportion
Exercise 7C | Q 2. | पृष्ठ १३८
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