Question

rezolvati  ex 12,13 din foto la ex 12 de l e)mai departe

Answer 1

a)√72=√(2³x3²)=6√2
b)√48=√2⁴x3=4√3
c)√75=√5²x3=5√3
d)√90=√3²x10=3√10
e)√54/3=√2x3³/3=3√6/3=√6
f)5√(1/125)=5/√5³=5/5√5=1/√5
g)1/8·√96=√96/8=√2⁵x3/8=4√2/8=√2/2
h)1/7·√147=√147/7=√7²x3/7=7√3/7=√3

introducerea sub radical
a)3√5=√3²x5=√45
b)5√3=√5²x3=√75
c)2√7=√2²x7=√28
d)-3√2=-√3²x2=-√18
e)6√3=√6²x3=√108
f)1/3·√27=√27/3=√27/√3²=√27/√9=√27/9=√3
g)-5√0,2=-√5²x0,2=-√5
h)-2√1/8=-√2²/8=-√4/8=-√1/2