8. tentukan hasil dari :
a. 3√2 + 5√2 = (3+5)√2 = 8√2
b. 8√3 - 6√3 = (8-6)√3 = 2√3
c. 10√2 + √12 = 10√2 + √(4×3) = 10√2 + √(2²×3) = 10√2 + 2√3
d. √108 - 5√3 = √(36×3) - 5√3 = √(6²×3) - 5√3 = 6√3 - 5√3 = (6-5)√3 = √3
e. 7√5 + 3√20 - √80 = 7√5 + 3√(4×5) - √(16×5) = 7√5 + 3√(2²×5) - √(4²×5) = 7√5 + 3 . 2√5 - 4√5 = 7√5 + 6√5 - 4√5 = (7+6-4)√5 = 9√5
9. tentukan hasil Dari :
a. √6 × 2√3 = 2 × √3 × √6 = 2√18
= 2 × √(9×2) = 2 ×√(3²×2) = 2 × 3 × √2
= 6√2
b. √18 × 5√3 = 5 × √18 × √3 = 5√54
= 5 √(9×6) = 5 √(3²×6) = 5 × 3 × √6
= 15√6
c. 4√5 × 3√2 = 4 × 3 × √5 × √2 = 12√10
d. 7√15 × 2√5 = 7 × 2 × √15 × √5 = 14√75
= 14√(25×3) = 14√(5²×3) = 14 × 5 × √3
= 70√3
e. 6√12 × 5√6 = 6 × 5 × √12 × √6 = 30√72
= 30√(36×2) = 30√(6²×2) = 30 × 6 × √2
= 180√2
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
8. tentukan hasil dari :
a. 3√2 + 5√2 = (3+5)√2 = 8√2
b. 8√3 - 6√3 = (8-6)√3 = 2√3
c. 10√2 + √12 = 10√2 + √(4×3) = 10√2 + √(2²×3) = 10√2 + 2√3
d. √108 - 5√3 = √(36×3) - 5√3 = √(6²×3) - 5√3 = 6√3 - 5√3 = (6-5)√3 = √3
e. 7√5 + 3√20 - √80 = 7√5 + 3√(4×5) - √(16×5) = 7√5 + 3√(2²×5) - √(4²×5) = 7√5 + 3 . 2√5 - 4√5 = 7√5 + 6√5 - 4√5 = (7+6-4)√5 = 9√5
9. tentukan hasil Dari :
a. √6 × 2√3 = 2 × √3 × √6 = 2√18
= 2 × √(9×2) = 2 ×√(3²×2) = 2 × 3 × √2
= 6√2
b. √18 × 5√3 = 5 × √18 × √3 = 5√54
= 5 √(9×6) = 5 √(3²×6) = 5 × 3 × √6
= 15√6
c. 4√5 × 3√2 = 4 × 3 × √5 × √2 = 12√10
d. 7√15 × 2√5 = 7 × 2 × √15 × √5 = 14√75
= 14√(25×3) = 14√(5²×3) = 14 × 5 × √3
= 70√3
e. 6√12 × 5√6 = 6 × 5 × √12 × √6 = 30√72
= 30√(36×2) = 30√(6²×2) = 30 × 6 × √2
= 180√2