f=∞∑k=3(−1)kx(2k−2)
i would like to write this as the geometric power series!
Is there a ritual you have to do to solve this? thanks in advance.
Answer
∑k≥3(−1)kx2k−2=1x2∑k≥3(−x2)k=−x4∑k≥0(−x2)k.
How to find lim without lhopital rule? I know when I use lhopital I easy get $$ \lim_{h\rightarrow 0}...
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