Medium Math Class 9 Level 8

What is obtained after rationalizing 1/(√19 + √10)?

1/(√19 + √10) का हर परिमेय करने पर क्या मिलेगा?

A (√19 - √10)/9 / (√19 - √10)/9 B (√19 + √10)/9 / (√19 + √10)/9 C √19 - √10 / √19 - √10 D 9/(√19 - √10) / 9/(√19 - √10)
Show answer and explanation
Correct Answer

A. (√19 - √10)/9 / (√19 - √10)/9

Explanation

Multiplying by the conjugate makes the denominator 19 - 10 = 9.

संयुग्मी से गुणा करने पर हर 19 - 10 = 9 हो जाता है।

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