simplify the following by rationalising the denominator. sum:6-4√2 ÷ 6+4√2
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sum:6-4√2 ÷ 6+4√2
(6-4√2)/(6+4√2) × (6-4√2)/(6-4√2)
= (6-4√2)²/(6²-(4√2)²)
= {6²+(4√2)² - 2(6)(4√2)}/(36-32)
=. thus , {36+32-48√2}/4
= (68-48√2)/4
= 68/4 - 48√2/4
= 17 - 12 √ 2
This is your answer.....
(6-4√2)/(6+4√2) × (6-4√2)/(6-4√2)
= (6-4√2)²/(6²-(4√2)²)
= {6²+(4√2)² - 2(6)(4√2)}/(36-32)
=. thus , {36+32-48√2}/4
= (68-48√2)/4
= 68/4 - 48√2/4
= 17 - 12 √ 2
This is your answer.....
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