Question

va rog ajutati ma , ofer 60 de puncte

Answer 1

Răspuns:

Explicație pas cu pas:

1

a)√124=√(4·31)=2√31

b)√27=√(9·3)=3√3

c)√243=√(9·27)=3·√27=3·3√3=9√3

d)√200=√(2·100)=10√2

e)√800=√(8·100)=10√8=10√(4·2)=10·2√2=20√2

f)√80=√(16·5)=4√5

2

a) (16²·8⁷·4)/(32·16⁴)=[(2⁴)²·(2³)⁷·2²]/[2⁵·(2⁴)⁴]=(2⁸·2²¹·2²)/(2⁸·2¹⁶)=

=2⁸⁺²¹⁺²/2⁸⁺¹⁶=2³¹/2²⁴=2³¹⁻²⁴=2⁷

b) (27·9·3³)⁵=(3³3²3³)⁵=(3³⁺²⁺³)⁵=(3⁸)⁵=3⁸ˣ⁵=3⁴⁰