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junior college 2 | H2 Maths
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junior college 2 chevron_right H2 Maths chevron_right Singapore

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Date Posted: 5 years ago
Views: 265
J
J
5 years ago
Use the formula for geometric series Sn = a(rⁿ - 1)/(r - 1)

In this case, a = 3 and r = -x/3


For sum to infinity , you should know which formula to use.

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Kenneth Chee
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S
S
5 years ago
how about the first part on finding the sum to n terms?