求定积分integrate 4(x ((secx)^4) tanx ) dxintegrate 4(x ((secx)^4) tanx ) dx from x=0 to x=(pi/3)求具体步骤

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求定积分integrate 4(x ((secx)^4) tanx ) dxintegrate 4(x ((secx)^4) tanx ) dx from x=0 to x=(pi/3)求具体步骤

求定积分integrate 4(x ((secx)^4) tanx ) dxintegrate 4(x ((secx)^4) tanx ) dx from x=0 to x=(pi/3)求具体步骤
求定积分integrate 4(x ((secx)^4) tanx ) dx
integrate 4(x ((secx)^4) tanx ) dx from x=0 to x=(pi/3)求具体步骤

求定积分integrate 4(x ((secx)^4) tanx ) dxintegrate 4(x ((secx)^4) tanx ) dx from x=0 to x=(pi/3)求具体步骤