Решите пример про арифметическую прогрессию
a133/a5=17
a25/a17=?
a1+132d/a1+4d=17
a1+132d=17a1+68d
16a1=64d
a1=4d
a25=a1+24d=4d+24d=28d
a47=a1+46d=4d+46d=50d
28d/50d=28/50=14/25
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Verified answer
a133/a5=17
a25/a17=?
a1+132d/a1+4d=17
a1+132d=17a1+68d
16a1=64d
a1=4d
a25=a1+24d=4d+24d=28d
a47=a1+46d=4d+46d=50d
28d/50d=28/50=14/25