Rationalising
Rationalising
Last updated at Dec. 13, 2024 by Teachoo
Example 18 Rationalize the denominator of 5/(√3 − √5). 5/(√3 − √5) = 5/(√3 − √5) × (√3 + √5)/(√3 + √5) = (5 × (√3 + √5))/((√3)2 − (√5)2) = 5 ×(√5 + √3)/(3 − 5) = 5 ×(√5 + √3)/(−2) = – 5/2(√5+√3)