Answer: 225
Step-by-step explanation:
n₁ = 2(1) - 1
= 2 - 1
= 1
n₁₅ = 2(15) - 1
= 30 - 1
= 29
[tex]S_{15} =\frac{n_{1}+ n_{15}}{2}*15[/tex]
[tex]=\frac{1+29}{2}*15[/tex]
[tex]=\frac{30}{2}*15[/tex]
= 15 * 15
= 225
➷ The sum would be 225
➶ Hope This Helps You!
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