Number Systems · Class 9 · CBSE Mathematics
Rationalize the denominator of frac{1}{sqrt{7} - 2}.
Practice question from Number Systems (Class 9 · CBSE Mathematics), with the correct answer and a step-by-step solution.
medium · MCQ · Q-BBDAC7
Rationalize the denominator of .
- A.\frac{\sqrt{7} + 2}{3}Correct answer
- B.\frac{\sqrt{7} - 2}{3}
- C.\sqrt{7} + 2
- D.\frac{\sqrt{7} + 2}{5}
Solution
To rationalize the denominator, multiply the numerator and the denominator by the conjugate . This gives .
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