- A(5 + √21)/2
- B(5 − √21)/2
- C5 + √21
- D(10 + √21)/4
Step-by-Step Solution
Multiply top and bottom by (√7 + √3): (7 + 3 + 2√21)/(7 − 3) = (10 + 2√21)/4 = (5 + √21)/2.
Answer: A) (5 + √21)/2
After rationalising the denominator, what does (√7 + √3) / (√7 − √3) equal?
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