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√3*7
√17/34
√200*7/28
√15*4:30
∛7 * √16 : √28
∛9 *2/3
2.
a )√2 * √8 = √2*8=√16= 4
b) √5 / √20= √0,25
c ) √18 * √2 :6 = √18*2 : 6 = √36 : 6 = 6:6= 1
d ) √30 * √50/ √15 = √1500:15= √100 = 10
√17 / √34=√17*√34/√34*√34=√578/34=17√2/34=√2/2
√200 * √7 / √28=10√2*(√7*√28/√28*√28)=10√2*√196/28=10√2*14/28=10√*½=5√2
(√15 * √4 ) : √30=√60/√30=√60*√30/√30*√30=√1800/30=30√2/30=√2
∛7 * √16 : √28=∛7*4/√28=∛7*4√28/√28*√28=∛7*4√28/28=∛7*(4*2√7)/28=∛7*8√7/28=∛7*2√7/7
√2 * √8=√16=4
√5 / √20=√5*√20/√20*√20=√100/20=10/20=½
√18 * √2 :6=√36/6=6/6=1
√30 * √50/ √15=√30*(√50*√15/√15*√15)=√30*(√750/15)=√30*(5√30/15)=√30*√30/5=30/5=7