sin(x)2

sin(x^2)/sin^2x求导y=sin(x^2)/(sinx)^2y'=2xcos(x^2)/(sinx)^2+sin(x^2)*(-sin2x)/(sinx)^3=【2xcos(x^2)(sinx)+sin(x^2)*(-sin2x

化简sin(-2x)sin(-2x)=-sin2x

lim(x(sin)^2)x趋于多少?

sin^2(x)求导sin^2(x)'=2sin(x)*(sin(x))'=2sinxcosx=sin2x2cos2x

sin(2x)积分∫sin（2x）dx=-(1/2)cos(2x)+C(C为常数)很高兴为您解答,skyhunter002为您答疑解惑如果本题有什么不明白可以追问,

化简cos^2(x)*sin^2(x)-sin^2(x)=sin^2(x)*[cos^2(x)-1]=-sin^4(x)

化简cos^(2)(x)*sin^(2)(x)-sin^(2)(x)

化简sin^4x-sin^2x+cos^2xsin^4x-sin^2x+cos^2x=sin^2x(sin^2x-1)+cos^2x=-sin^2xcos^2x+cos^2x=cos^2x(1-sin^2x)=cos^4x=sin^4x-2

化简:sin^4x-sin^2x+cos^2xsin^4x-sin^2x+cos^2x=sin^2x(sin^2x-1)+cos^2x=-sin^2xcos^2x+cos^2x=cos^2x(-sin^2x+1)=cos^4x

x*（1+sin^2x)/sin^2x不定积分原式=∫x*(csc^2x+1)=∫x*csc^2x+x（分开积分）前面=-x*cotx+∫cotx=-x*cotx+ln|sinx|后面=1/2x^2记得加C

已知tan=2,求(cosx+sinx)/(cosx-sinx)+sin^2xsinx=2cosx,sin^2x=4cos^2xsin^2x=4-4sin^2x,sin^2x=4/5(cosx+sinx)/(cosx-sinx)+sin^2

化简(sinx+cosx-1)(sinx-cosx+1)/sin2xsinx=2sin(x/2)cos(x/2)cosx=1-2sin^2(x/2)故sinx+cosx-1=2sin(x/2)[cos(x/2)-sin(x/2)]sinx-

(1-(sin^4x-sin^2xcos^2x+cos^4x)/sin^2x+3sin^2xsin^4x-sin^2xcos^2x+cos^4x=sin^4x+2sin^2xcos^2x+cos^4x-3sin^2xcos^2x=(sin^

sin平方x-sinxcosx-2cos平方x求sin(x-π/3)X为锐角sin平方x-sinxcosx-2cos平方x=0求sin(x-π/3)请看图片

化简(sin^2x/sinx-cosx)-(sinx+cosx/tan^2x-1)tan²-1=sin²x/cos²x-1=(sin²x-cos²x)/cos²x=(sinx+co

sin^2(π/3-x)+sin^2(π/6+x)解sin²(π/3-x)+sin²(π/6+x)=sin²[π/2-(π/6+x)]+sin²(π/6+x)=cos²(π/6+x)+sin

∫sin^2x/(1+sin^2x)dx求解,原式=∫[1-1/(2sin²x+cos²x)]dx=∫dx-∫[sec²x/(2tan²x+1)]dx=∫dx-∫1/[(√2tanx)²+1

y=[sin^2(x)]*[sin^2(x)]求导打字不易，如满意，望采纳。

-sin(3x/2)*sin(x/2)等于什么为什么

求不定积分【sin(x)^5+sin(x)^3】^(1/2)这是一个超越积分(通常也称为不可积),也就是说这个积分的原函数不能用我们所学的任何一种函数来表示.但如果引入新的函数erf(x)=∫[0,x]e^(-t^2)dt,那么该函数的积分