sin10°cos50°+sin50°cos10°的三角函数值

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sin10°cos50°+sin50°cos10°的三角函数值

sin10°cos50°+sin50°cos10°
=sin(10°+50°)
=sin60°
=根号3/2

=sin(10 + 50) = sin60 = 根号3/2

通过计算数值为
sin10°=0.17364817766693034885171662676931
cos50°=0.64278760968653932632264340990726
sin50°=0.76604444311897803520239265055542
cos10°=0.98480775301220805936674302458952
SO I...

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通过计算数值为
sin10°=0.17364817766693034885171662676931
cos50°=0.64278760968653932632264340990726
sin50°=0.76604444311897803520239265055542
cos10°=0.98480775301220805936674302458952
SO IT IS:
sin10°cos50°+sin50°cos10°=
0.11161889704894966022053988042259+0.75440650673548898654318329032969
=0.86602540378443864676372317075159
公式推导:
sin10=cos80
cos50=sin40
sin50=cos40
cos10=sin80
cos80*sin40+cos40*sin80
=cos(90-10)sin40+cos40(sin90-10)
=sin60°

收起

(sin10°+cos50°)/(cos10°-sin50°)? sin10°cos50°+sin50°cos10° sin10°cos50°+sin50°cos10° （2sin10°+sin50°）÷cos50° （cos10°-cos50°）÷（sin10°-sin50°） sin10°cos50°+sin50°cos10°的三角函数值 和角公式 sin50°cos10°+cos50°sin10° √（cos50°-sin50°）²+|cos50°-1| 数学(cos50°*tan50°)-sin50° sin50°,cos50°分别等于多少 sin50°-cos50°等于多少 SIN50°+COS50°还能再化简了吗 sin50°-cos50°等于什么 2sin50°cos50°怎么等于cos50°cos40°+sin50°sin40° sin10加sin50除以cos10加cos50 sin50°*cos40°+cos50°*sin40°如题 计算sin50°cos40°+cos50°sin40° 求值sin70°cos50°+sin20°sin50°=?