limx→0[sinx-sin(sinx)]sinx/x^4
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limx→0[sinx-sin(sinx)]sinx/x^4
limx→0[sinx-sin(sinx)]sinx/x^4
limx→0[sinx-sin(sinx)]sinx/x^4
limx→0[sinx-sin(sinx)]sinx/x^4
=limx→0[sinx-sin(sinx)]/x^3
=limx→0[cosx-cos(sinx)*cosx]/3x^2(洛必达)
=limx→0[1-cos(sinx)]cosx/3x^2
=limx→0[1-cos(sinx)]/3x^2(洛必达)
=limx→0sin(sinx)cosx/6x
=limx→0sin(sinx)/6x
=limx→0sinx/6=
1/6
sin(sinx)=sinx+(sinx)³/6+o(sin³x)
原式=[sinx-sinx-(sinx)³/6-o(sin³x)]/x^3*[(sinx/x)]=-1/6
limx→0[sinx-sin(sinx)]sinx/x^4
求证 limx→0 ((sinx-sin(sinx))sinx)/sinx^4=1/6
limx趋近0 {【sinx---sin(sinx)】sinx}/(x^4)
limx→0 sin[sin(sinx)]/x
limx→0 tan(tanx)-sin(sinx)/x^3
limx→0(sin³x/sinx³)=
limx→0 tan2x/sinx
limx→0 (tanx-sinx)/sin^3x =limx→0 (tanx-sinx)/x³ 为什么可以直接去掉sinx
+tan(sinx)sin(tanx)什么意思limx→0+tan(sinx)sin(tanx)原式=limx→0+[sec(sinx)]^2cosx2tan(sinx)cos(tanx)sec2x2sin(tanx) (用罗比塔法则)=limx→0+sec2(sinx)cosxcos(tanx)sec2x•limx→0+sin(tanx)tan(sinx) (分离非零极限乘积
limx→0 e^sinx(x-sinx)/(x-tanx)
limx→0 5x-sinx/3x+7sinx
limx→ 0(2x-sinx)/(x+sinx)
limx趋近于0 (tanx-sinx)/sin^3x
limx->无穷大(tnax-sinx)/sin^3xlim->0
limx→0+(x^sinx)求极限
limx→0 (tanx-sinx)/x
limx->0[tanx-sinx]/sinx^3=?
limx->0(x-sinx)/(x+sinx)