University of business and science

Tushunganingizni tekshiring
6) Berilgan �(�)=−5+9(�−1)b(n)=−5+9(n−1)b, left parenthesis, n, right parenthesis, equals, minus, 5, plus, 9, left parenthesis, n, minus, 1, right parenthesis yordamida �(10)b(10)b, left parenthesis, 10, right parenthesis ni toping.
�(10)=b(10)=b, left parenthesis, 10, right parenthesis, equals 

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7) Berilgan �(�)=20−17(�−1)c(n)=20−17(n−1)c, left parenthesis, n, right parenthesis, equals, 20, minus, 17, left parenthesis, n, minus, 1, right parenthesis yordamida �(8)c(8)c, left parenthesis, 8, right parenthesis ni toping.
�(8)=c(8)=c, left parenthesis, 8, right parenthesis, equals 

Tekshirish
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8) Berilgan �(�)=2+0.4(�−1)d(n)=2+0.4(n−1)d, left parenthesis, n, right parenthesis, equals, 2, plus, 0, point, 4, left parenthesis, n, minus, 1, right parenthesis yordamida �(21)d(21)d, left parenthesis, 21, right parenthesis ni toping.
�(21)=d(21)=d, left parenthesis, 21, right parenthesis, equals 

Tekshirish
[Yordam kerak!]
Geometrik progressiyaning qismlari va formulalari
Geometrik progressiyada ketma-ket hadlarning boʻlinmasi doim bir xil. Biz uni progressiya maxraji deb ataymiz.
Masalan, quyidagi progressiya maxraji 2222 ga teng:

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