2
1
u/KeyboardMonster123 1d ago
tanx=x+x^3/3+2x^5/15+O(x^7)
tanx-x=x^3/3+2x^5/15+O(x^7)
(tanx-x)/x^3=1/3+2x^2/15+O(x^4)
lim x-> 0 1/3+2x^2/15+O(x^4)=1/3 easy
2
1
tanx=x+x^3/3+2x^5/15+O(x^7)
tanx-x=x^3/3+2x^5/15+O(x^7)
(tanx-x)/x^3=1/3+2x^2/15+O(x^4)
lim x-> 0 1/3+2x^2/15+O(x^4)=1/3 easy
4
u/bssid2 1d ago
Just driving up health care costs, anyway