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dimanknyazev
@dimanknyazev
August 2022
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лида251
1.
а) 1/7√0,49+1/6√576=1/7•7/10+1/6•24=1/10+4=4, 1
б) 0,6+3,8√9/64=0,6+38/10•3/8=0,6+1, 425=2, 025
в) (3√0, 6)²= 9•0, 6=5, 4
2.
а) √1, 69•225=√1521/4=39/2=19, 5
б) √153•√17√153•17=√2601=51
в) √500
_______=
√5
=√500/5=√100=10
г) √5^8•√4²=5⁴•4=625•4=2500
3.
а)у²=0, 09
у=+-√0, 09
у1=0, 3
у2= - 0,3
б) у²=72
у= +-√72=+-√36•2
у1=6√2
у2= -6√2
4.
a)1/4u⁴√121u⁴=1/4u⁴•11u²=11/4u^6= 2 3/4 u^6 ( ^ 6 в шестой степени)
б) -8t²√1/49t²= -8t²•1/7t= -8/7t³= - 1 1/7t³
5.
√87=9, 33278
9,4 и 9,5
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Answers & Comments
а) 1/7√0,49+1/6√576=1/7•7/10+1/6•24=1/10+4=4, 1
б) 0,6+3,8√9/64=0,6+38/10•3/8=0,6+1, 425=2, 025
в) (3√0, 6)²= 9•0, 6=5, 4
2.
а) √1, 69•225=√1521/4=39/2=19, 5
б) √153•√17√153•17=√2601=51
в) √500
_______=
√5
=√500/5=√100=10
г) √5^8•√4²=5⁴•4=625•4=2500
3.
а)у²=0, 09
у=+-√0, 09
у1=0, 3
у2= - 0,3
б) у²=72
у= +-√72=+-√36•2
у1=6√2
у2= -6√2
4.
a)1/4u⁴√121u⁴=1/4u⁴•11u²=11/4u^6= 2 3/4 u^6 ( ^ 6 в шестой степени)
б) -8t²√1/49t²= -8t²•1/7t= -8/7t³= - 1 1/7t³
5.
√87=9, 33278
9,4 и 9,5