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3 years ago

What is the 28th term of the arithmetic sequence with a 1 = 4 and d= -2

Mathematics

1 answer:

Amiraneli [1.4K]3 years ago

4 0

Answer:

Step-by-step explanation:

tn = a + (n-1)*d

t28 = 4 + (27)*-2 27 because 27 = 28 - 1

t28 = 4 + - 54

t28 = 4 - 54

t28 = - 50

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$\bf y=2cot(3x)+4\implies y=2\cdot \cfrac{cos(3x)}{sin(3x)}+4\impliedby \textit{if \underline{sin(3x)} turns to 0}\\\\
-------------------------------\\\\
\textit{let's check}
\\\\\\
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