cos2x sin3xdx
∫(0到π/2)sinxcos2xsin3xdx怎么计算,过程怎么写 - 百度知 ...
利用“积化和差”公式求解。∵sinxsin3x=(cos2x-cos4x)/2，∴sinxcos2xsin3x=(1/2)(cos2x-cos4x)cos2x)=(1/4)(1+cos4x-cos2x-...
∫sin3xcos2xdx用凑微分法怎么求不定积分?
∫sin3xcos2xdx=-1/10cos5x-1/2cosx+C。C为积分常数。解答过程如下：∫sin3xcos2xd(x)=1/2∫（sin5x+sinx）dx =1/2（∫sin5x...
求不定积分∫sinxcosxdx?
∫cos2xsin2xdx=∫(sin2xsin4x)dx=∫sin2xdx∫sin4xdx=12∫1dxcosxsinx2(34∫sin2xdxcosxsin3x4)=x2...
sin3x.cos2xd(x)的不定积分怎么求解
利用三角函数和差化积公式。∫sin3xcos2xd(x)=1/2∫（sin5x+sinx）dx=1/2（∫sin5xdx+∫sinxdx）= -1/10cos5x-cosx+C sin3x cos2x = (1/2) sin(5x)...
∫cos3xdx求解
∫cos3xdx=∫(cos3x)/3 d3x=(sin3x)/3+C
题目出自高等数学,求路过的高手帮忙解答一下,谢谢! - 百度...
1。∫sin3xcos2xdx 解：原式=(1/2)∫(sinx+sin5x)dx=(1/2)[∫sinxdx+(1/5)∫sin5xd(5x)]=(1/2)[-cosx-(1/5)cos5x]+...
∫(secX)^3?
I=∫sec3xdx=∫secxdtanx=tanxsecx∫tanxdsecx=tanxsecx∫sin2xcos3xdx=tanxsec...
sinx+cosx的不定积分怎么求?
sin3x+cos3x)dx=∫((2tanx21+tan2x2)3+(1tan2x21+tan2x2)3)dx=∫((2t1+t2)3+(1t21+t2)3)...
跪求∫cos2x/sin^2xcos^2xdx 十万火急!
sin^2xcos^2x=1/4(2sinxcosx)^2=1/4sin2x原式=∫cos2x/sin^2xcos^2xdx=∫cos2x/(1/4sin2x)dx=∫2/sin2xd(sin2x)=2lnsin2x+C
求不定积分 ∫Sin3xCos2xdx 请写明步骤。谢谢
sin5x=Sin3xCos2x+Sin2xCos3x sinx=Sin3xCos2x-Sin2xCos3x ∫Sin3xCos2xdx =0.5 ∫Sin5x+Sinxdx =-0.1cos5x-0.5cosx ∫