Oblicz : (pierwiastek z 15 razy pierwiastek z 3 ) przez pierwiastek z 5 .
(√15*√3):√5=√45:√5=√9=3
√15 * √3 √(3 * 5) * √3 √3 * √5 * √3
------------ = ------------------ = ------------------- = √3 * √3 = 3
√5 √5 √5
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(√15*√3):√5=√45:√5=√9=3
√15 * √3 √(3 * 5) * √3 √3 * √5 * √3
------------ = ------------------ = ------------------- = √3 * √3 = 3
√5 √5 √5