Question

so sánh 199²⁰và2003¹⁵

Answer 1

ta co: 199²⁰<200²⁰ =(2.10²)²⁰=2²⁰.10⁴⁰

          2003¹⁵>2000¹⁵=(2.10³)¹⁵=2¹⁵.10⁴⁵=2¹⁵.10⁵.10⁴⁵=2¹⁵.2⁵.5⁵.10⁴⁰=2²⁰.10⁴⁰.5⁵

\(\Rightarrow\)2003¹⁵>199²⁰

tick cho minh nha nguyen huu huy

Answer 2

199^20<2003^15

Answer 3

chtt

Answer 4

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Answer 5

199^ 20 < 200^ 20 = (2 ^3 .5^ 2 ) ^20 = 2 ^60 . 5 ^40 . 2003 ^15 > 2000 ^15 = (2.10 ^3 )
^15 = (2 ^4 . 5 ^3 ) ^15 = 2 ^60 .5 ^45