Teaching DSSSB TGT Mock Test 2025 Mathematical Science Complex Analysis Taylor Series, Laurent Series
Taylor series expansion of f(x) = ln(cosh x) where x is real about x = 0 stands with the terms
1
\(-\frac12x^2+\frac1{12}x^4\)
2
\(\frac12x^2-\frac1{12}x^4\)
3
\(-\frac12x^2+\frac1{6}x^4\)
4
\(\frac12x^2+\frac1{6}x^4\)