Sum of Series cos(n)/3^n
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Uploader Comments (MathDoctorBob)
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Thanks Professor it's good to see u again
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Thanks doctor Bob!
Your new lesson is beautiful and clear as always!
Dear greetings from Italy.
Have a nice day!
Nicola72av 6 months ago
@Nicola72av You're welcome! - Bob
MathDoctorBob 6 months ago