化简 (1) sin347°cos148°+sin77°cos58° (2)sin164°sin2化简(1)sin347°cos148°+sin77°cos58°(2)sin164°sin224°+sin254°sin314°

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化简 (1) sin347°cos148°+sin77°cos58° (2)sin164°sin2化简(1)sin347°cos148°+sin77°cos58°(2)sin164°sin224°+sin254°sin314°
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化简 (1) sin347°cos148°+sin77°cos58° (2)sin164°sin2化简(1)sin347°cos148°+sin77°cos58°(2)sin164°sin224°+sin254°sin314°
化简 (1) sin347°cos148°+sin77°cos58° (2)sin164°sin2
化简
(1)
sin347°cos148°+sin77°cos58°
(2)sin164°sin224°+sin254°sin314°

化简 (1) sin347°cos148°+sin77°cos58° (2)sin164°sin2化简(1)sin347°cos148°+sin77°cos58°(2)sin164°sin224°+sin254°sin314°
 

化简 (1) sin347°cos148°+sin77°cos58° (2)sin164°sin2化简(1)sin347°cos148°+sin77°cos58°(2)sin164°sin224°+sin254°sin314° sin347°cos148°+sin77°cos58°化简 sin347°cos148°+sin77°cos58° sin347°cos148°+sin77°cos58°怎么算? sin347°cos148°+sin77°cos58°等于多少,要具体过程,谢谢 求sin347°cos148°+sin77°cos58°的值 tan525° 化简 用和(差)角公式 sin347°cos148°+sin77°cos58°化简 sin164°sin224°+sin254°sin31...tan525° 化简 用和(差)角公式 sin347°cos148°+sin77°cos58°化简 sin164°sin224°+sin254°sin314°化简 13、化简:(1)3√15sinx+3√5cosx (2)3/2cosx-√3/2sinx (3)√3sinx/2+cosx/2(4)√2/4sin(π/4-x)+√6/4cos(π/4-x) (5)sin347°cos148°+sin77°cos58°(6)sin164°sin224°+sin254°sin314° (7)sin(a+b)cos(γ-b)-cos(b+a)sin 化简:(1)3/2cosx-√3/2sinx(2)√3sinx/2+cosx/2(3)√2/4sin(π/4-x)+√6/4cos(π/4-x)(4)sin347°cos148°+sin77°cos58°(5)sin164°sin224°+sin254°sin314°(6)sin(α+β)cos(γ-β)-cos(β+α)sin(β-γ)(7)sin(α-β)sin(β-γ)-cos(α-β) 1.3/2cos x-√ ̄3/2sin x;2.sin347°cos148°+sin77°cos58° 化简:2分之3cosX-2分之根号3sinX? sin347°cos148°+sin72°cos58°? sin164°sin224°+sin254°sin314谢谢你、拜托你帮帮我 1、sin347 cos148+cos13 cos58等于()2、已知tanα=3,则sinα-2sinαcosα+3cosα等于()3、计算5sin90+2cos0-3tan180+6cos180(要过程) sin347度cos148度+sin77度cos58度=? sin347°cos148°+sin77°cos58°要求是利用和差公式化简有急用,明天就叫作业了··· 高一三角函数利用和(差)角公式化简.①√2 ̄ π √6 ̄ π ----sin(--- - x)+ ----cos(---- - x)4 4 4②sin347°cos148°+sin77°cos58°PS.π 代表数学符号“派”.可是我觉得好难,55555.第一题显示不出啊.那 sin347ºcos148º+sin77ºcos58º化简要过程 ﹣sin347°×cos32°×cos58°×sin77°= sin374°cos148°+sin77°cos58° 和sin(a+b)cos(γ-b)-cos(b+a)sin(b-γ)