कौन-सा विकल्प हर का सही परिमेयकरण दिखाता है?
Which option shows correct rationalisation of the denominator?
Explanation opens after your attempt
Correct Answer
A. \(\frac{1}{\sqrt{7}}=\frac{\sqrt{7}}{7}\)
Concept
Multiplying numerator and denominator by \(\sqrt{7}\) gives \(\frac{\sqrt{7}}{7}\). Rationalisation should not change the value.
Why this answer is correct
The correct answer is A. \(\frac{1}{\sqrt{7}}=\frac{\sqrt{7}}{7}\). Multiplying numerator and denominator by \(\sqrt{7}\) gives \(\frac{\sqrt{7}}{7}\). Rationalisation should not change the value.
Exam Tip
हर और अंश को \(\sqrt{7}\) से गुणा करने पर \(\frac{\sqrt{7}}{7}\) मिलता है। परिमेयकरण में मान नहीं बदलना चाहिए।
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