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merasionalkan 
merasionalkan
No 1
3/√7
= 3√7/√7 × √7
= 3 - √7/7
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No 2
6/2√6
= 3/√6
= 3√6/√6 × √6
= 3√6/6
= √6/2
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No 3
5√2/3√3
= 5√2 × √3/3 √3 × √3
= 5√2 × √3/3 × 3
= 5√6/9
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No 4
8/3 + √5
= 8 × (3 - √5)/(3 + √5) × (3 × √5)
= 8 × (3 - √5)/(3² - (√5)²
= 8 × (3 - √5)/9 - (√5)²
= 8 × (3 - √5)/4
= 2 × ( 3 - √5)
= (2 × 3) - 2√5
= 6 - 2√5
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No 5
4/√7 + √3
= 4 × (√7 - √3)/(√7 + √3) × (√7 - √3)
= 4 × (√7 - √3)/(√7)² - (√3)²
= 4 × (√7 - √3)/7 - (√3)²
= 4 × (√7 - √3)/7 - 3
= 4 × (√7 - √3)/4
= √7 - √3
Zz!
[answer.2.content]
