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ex (terms)
ex = 1+ x/1! + x²/2! + x³/3! +…
∞∑n=0 for ex
xⁿ/n!
sin(x) (terms)
sin(x) = x - x³/3! + x⁵/5! - x⁷/7! + …
∞∑n=0 for sin(x)
((-1)ⁿ(x)²ⁿ⁺¹) / ((2n+1)!)
cos(x) (terms)
cos(x) = 1 - x²/2! + x⁴/4! - x⁶/6! + …
∞∑n=0 for cos(x)
((-1)ⁿx(x)²ⁿ) / ((2n)!)
ln(1+x) (terms)
ln(x) = x - x²/2 + x³/3 - x⁴/4 + …
∞∑n=0 for ln(1+x)
((-1)ⁿ⁻¹(xⁿ⁺¹)) / (n+1)
1 / (1-x) (terms)
1 / (1-x) = 1 + x + x² + x³ + …
∞∑n=0 for 1 / (1+x)
xⁿ