How To Integrate sec^4(x)
Published On :2020-12-06 20:27:00
[begin{array}{l} smallint se{c^{bf{4}}}x{rm{d}}x\\ smallint se{c^2}xse{c^2}x{rm{d}}x\ smallint left( {1 + {{tan }^2}x} right){sec ^2}x{rm{d}}x\ By;Substitution\ Suppose Rightarrow z = tanx\ dz = se{c^2}xdx\ smallint left( {1 + {z^2}} right){rm{d}}z;\ z + frac{{{z^3}}}{3}\ tan x + frac{{{{tan }^3}x}}{3} + c end{array}]