मराठी

Write whether [\frac{2\sqrt{45} + 3\sqrt{20}}{2\sqrt{5}}] on simplification gives a rational or an irrational number.

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प्रश्न

Write whether \[\frac{2\sqrt{45} + 3\sqrt{20}}{2\sqrt{5}}\] on simplification gives a rational or an irrational number.

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उत्तर

Let us simplify  `(2sqrt45 +3 sqrt20)/(2sqrt5)`

`(2sqrt45+3sqrt20)/(2sqrt5)=(6sqrt5+6sqrt5)/(2sqrt5)`

`=(12sqrt5)/(2sqrt5)`

`=6`

6 is rational number

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 1: Real Numbers - VERY SHORT ANSWER TYPE QUESTIONS (VSAQs) [पृष्ठ १.४३]

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आर.डी. शर्मा Mathematics [English] Class 10
पाठ 1 Real Numbers
VERY SHORT ANSWER TYPE QUESTIONS (VSAQs) | Q 16. | पृष्ठ १.४३
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