∫secx/sec^2x-1 dx
∫[(sec^2x-1)secx]dx=
∫ sec^2 x dx
∫secxdx =∫secx(secx+tanx)dx//(secx+tanx) =∫(sec
tan(x)sec^2(x)dx,secx的导是secxtanx就是sec(x)d(sec(x)) 但tanx的导是se
∫1/根号x*sec^2(1-根号x)dx
∫(tanx)^2*(secx)^2*(secx)^2x*dx=∫(tanx)^2*(1+tan)^x*dtanx是怎么
1、∫[2/(1+x^2) -sec^2)dx
∫1/(sec^2x+1)dx等于多少?
∫sec²x/1+tanx dx
∫(sec^2x+sinx)dx
∫sec^4x dx ∫sec^2x tan^2x dx