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1993=501* 3 +490; n=0;
501=490* 1 +11; n=1;
490=11* 44 +6; n=2;
11=6* 1 +5; n=3;
6=5* 1 +1; n=4;
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. 30.
8 2.
. 30.
13=64*0+13 64=13*4+12 13=12*1+1 12=1*12+0 |
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. 30. 1) 5x+7y=11;
; x=7t+5;
t | -2 | -1 | ||||
x | -9 | -2 | -9 | |||
y | -2 | -7 | -12 |
³: (-9,8),(-2,3),(5,-2),(12,-7),(19,-12),(-9,8),
2) 102x-37y=408;
37/28=[1;3,9] 37=28*1+9 28=9*3+1 9=1*9+0 |
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x=37t+4;
t | -2 | -1 | ||||
x | -70 | -33 | -70 | |||
y | -204 | -102 | -204 |
³: (-70,-204),(-33,-102),(4,0),(41,102),(78,204),(-70,-204),.
. 30. 4.5m=450cm
t | -2 | -1 | ||||
x | -22 | -5 | ||||
y | -6 | -18 |
³. , (12,18) (29,6).