Siemka , zrobicie mi zadania z tej kartki ? :) Daje max pkt + za wszytskie przykłady i zadania naj :)
W załączniku są zadania , troche niewyraźnie ale jak sie pobierze i powiększy to jest super. :P
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
zd 1
a) 5 3/8 - 1 5/6 = 43/8 - 11/6 = 258/48 - 88/ 48 = 170/48 = 3 26/48 = 3 13/24
b) 6 1/4 : 15 = 25/4 *1/15 = 25/60 = 5/12
c) 5- (-2)*(-3)= 5- (6)= -1
zd2
0,(8) + 2,(4) =8/9 + 2 4/9 = 8/9+22/9 = 30/9 = 3 3/9 = 3 1/3
0,(8) = x | *10
8,(8) = 10x
8+ 0,(8) =10x
8+ x =10x|-x
8=9x|:9
8/9 = x
2,(4) = 2+ 0,(4)
0,(4)=x | *10
4,(4) =10x
4+ 0,(4) = 10x
4+x = 10x |-x
4= 9x |:9
4/9 = x
x+ 2 = 4/9 +2 = 2 4/9
zd 4
zad5
a) 2![2\sqrt{3} (6 - 3\sqrt{3} ) = 12 \sqrt{3} * 6 - 2\sqrt{3} * 3\sqrt{3} = 36 \sqrt{3} - 6 \sqrt{3*3} = \\ = 36 \sqrt{3} - 6 \sqrt{9} =36 \sqrt{3} - 6 *3 = 36 \sqrt{3} - 18 2\sqrt{3} (6 - 3\sqrt{3} ) = 12 \sqrt{3} * 6 - 2\sqrt{3} * 3\sqrt{3} = 36 \sqrt{3} - 6 \sqrt{3*3} = \\ = 36 \sqrt{3} - 6 \sqrt{9} =36 \sqrt{3} - 6 *3 = 36 \sqrt{3} - 18](https://tex.z-dn.net/?f=2%5Csqrt%7B3%7D+%286+-+3%5Csqrt%7B3%7D+%29+%3D+12+%5Csqrt%7B3%7D+%2A+6+-+2%5Csqrt%7B3%7D+%2A+3%5Csqrt%7B3%7D+%3D+36+%5Csqrt%7B3%7D+-+6+%5Csqrt%7B3%2A3%7D+%3D+%5C%5C+%3D+36+%5Csqrt%7B3%7D+-+6+%5Csqrt%7B9%7D+%3D36+%5Csqrt%7B3%7D+-+6+%2A3+%3D+36+%5Csqrt%7B3%7D+-+18+)
b)![(4 + \sqrt{7}) ( 3\sqrt{7} -2 ) = 12 \sqrt{7} -8\sqrt{7*7} - 2 \sqrt{7}= \\ = 12 \sqrt{7} -8 \sqrt{49} - 2 \sqrt{7} = 12 \sqrt{7} -8*7 - 2 \sqrt{7}= \\ = 12 \sqrt{7} -56 - 2 \sqrt{7}= 10 \sqrt{7} - 56 (4 + \sqrt{7}) ( 3\sqrt{7} -2 ) = 12 \sqrt{7} -8\sqrt{7*7} - 2 \sqrt{7}= \\ = 12 \sqrt{7} -8 \sqrt{49} - 2 \sqrt{7} = 12 \sqrt{7} -8*7 - 2 \sqrt{7}= \\ = 12 \sqrt{7} -56 - 2 \sqrt{7}= 10 \sqrt{7} - 56](https://tex.z-dn.net/?f=%284+%2B+%5Csqrt%7B7%7D%29+%28+3%5Csqrt%7B7%7D+-2+%29+%3D+12+%5Csqrt%7B7%7D+-8%5Csqrt%7B7%2A7%7D+-+2+%5Csqrt%7B7%7D%3D+%5C%5C+%3D+12+%5Csqrt%7B7%7D+-8+%5Csqrt%7B49%7D+-+2+%5Csqrt%7B7%7D+%3D+12+%5Csqrt%7B7%7D+-8%2A7+-+2+%5Csqrt%7B7%7D%3D+%5C%5C+%3D+12+%5Csqrt%7B7%7D+-56+-+2+%5Csqrt%7B7%7D%3D+10+%5Csqrt%7B7%7D+-+56+)
zad3
a) 9762,2 * 10^ -14 = 9,7622 * 10^-3 * 10^ -14 = 9,7622 *10 ^ 17
ale to nie jestem pewna bo nie pamiętam notacji. :(