leeplott4747

03.04.2020 • 

Mathematics

A
Mental Math The general term of a sequence is given. In each case find
the first four terms, the 10th term, and the 15th term.
w 1. an = 3n +1 2. an = 3n - 1 3. an = 11 . 4. a, = n2 + 1
The general term of a sequence is given. In each case find the first four terms,
the 10th term, and the 15th term.
5. an = n² – 2n 6. an = 1 7. an = n +1 8. an = ( - )"-
Find the first five terms of these recursively defined sequences.
9. a1 = 2, an+1 = 4an - 3 10. a1 = -3, an+1 = 2an - 5
11. a1 = 8, an+1 = žan +2 12. a1 = 3, a2 = 3, an+1 = an - an-1

Ответ:

leah24645

13.10.2020

Mathematics

---

90^2 = 55^2 + 50^2 - 2(55)(50)cosX
(90^2 - 55^2 - 50^2)/(2(55)(50)) = cosX
X = 62.1°

---

0,0(0 оценок)