1.∫(2-sec^2(x))*dx 2.∫(cos2x/sin^2(x))dx陈景润啊华罗庚,

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1.∫(2-sec^2(x))*dx 2.∫(cos2x/sin^2(x))dx陈景润啊华罗庚,
1.∫(2-sec^2(x))*dx 2.∫(cos2x/sin^2(x))dx
陈景润啊华罗庚,

1.∫(2-sec^2(x))*dx 2.∫(cos2x/sin^2(x))dx陈景润啊华罗庚,
1、∫(2-sec²x)dx = 2x-tgx+c
2、∫(cos2x/sin² x)dx=∫[(1-2sin²x)/sin² x]dx
=∫[(csc²x -2)dx=-cotx-2x+c

.∫(2-sec^2(x))*dx
=S2dx-Ssec^2(x))*dx
=2x-tanx+c
.∫(cos2x/sin^2(x))dx
=S(1-2sin^2(x))/sin^2(x))dx
=Scsc^2(x)dx-2Ssinxdx
=-cotx+2cosx+c

∫(2-sec^2(x))*dx =2x-tgx+c
∫(cos2x/sin^2(x))dx=.∫[1-2sin^2(x)]/sin^2(x))dx==∫[1/sin^2(x)-2]/dx=-ctanx-2x+c

∫ sec^2 x dx ∫（sec^2x+sinx)dx ∫secx/sec^2x-1 dx ∫sec^4x dx ∫sec^2x tan^2x dx 1.∫(2-sec^2(x))*dx 2.∫(cos2x/sin^2(x))dx陈景润啊华罗庚, ∫(x^2+sec^2x)dx求积分 ∫sec^2 x / √ tan x +1 dx ∫1/根号x*sec^2(1-根号x)dx sec^2x dx不定积分是多少 ∫1/(sec^2x+1)dx等于多少? 求积分∫(sec^2x/根号(tanx-1))dx ∫[(sec^2x-1)secx]dx= 求积分：∫(sec^2(x))*(tan(x))dx,和(0为下限(开根号pi)/2为上限)∫x*sec(x^2)*tan(x^2)dx sec^2x dx 是多少啊.有知道的么? 1、∫[2/(1+x^2) -sec^2)dx2、∫[√(x)+1]^2/(x) dx sec^2xtanx/√(2+sec^2x)dx求定积分 sec^2 x是f(x)的一个原函数,则∫xf'(x)dx=? ∫sec∧2x/(4+tan∧2x)dx不定积分里