7rnmartinez
07.04.2020 •
Mathematics
For the sequence -28,-16,-4,8,... The expression that defines the nth term where a 1 =-28 is 12 - 28n 2 12 - 28(n - 1) 3. - 28 + 12n - 28 + 12(n - 1) Submit Answer
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Ответ:
a₁ = -28
aₙ = a₁ + 12 (n-1)
Step-by-step explanation:
a₁ = -28
a₂ = -28 + 12 (2 - 1) = -16
a₃ = -28 + 12 (3 - 1) = -4
a₄ = -28 + 12 (4 - 1) = 8
aₙ = a₁ + 12 (n-1)
Ответ:
1.06418
The same as of sec 20 degrees in radians to obtain 20 degrees in radian multiply 20° by / 180° = 1/9