Medium Math Class 9 Level 4

What is obtained after rationalizing 1/(√7 + √5)?

1/(√7 + √5) का हर परिमेय करने पर क्या मिलेगा?

A) (√7 - √5)/2 / (√7 - √5)/2 B) (√7 + √5)/2 / (√7 + √5)/2 C) √7 - √5 / √7 - √5 D) 2/(√7 - √5) / 2/(√7 - √5)
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Correct Answer

A. (√7 - √5)/2 / (√7 - √5)/2

Explanation

Multiplying by the conjugate makes the denominator 7 - 5 = 2.

संयुग्मी से गुणा करने पर हर 7 - 5 = 2 हो जाता है।

Related Questions

Easy Math Class 10 Level 1

What is the area of a circle with radius 7 cm when π = 22/7?

7 सेमी त्रिज्या वाले वृत्त का क्षेत्रफल कितना होगा जब π = 22/7 हो?

A. 44 सेमी² / 44 cm² B. 77 सेमी² / 77 cm² C. 154 सेमी² / 154 cm² D. 308 सेमी² / 308 cm²
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