化简(1)√3sin x+cos x (2)√2(sin x-cos x) (3)√2cos x-√6sin x
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化简(1)√3sin x+cos x (2)√2(sin x-cos x) (3)√2cos x-√6sin x
化简(1)√3sin x+cos x (2)√2(sin x-cos x) (3)√2cos x-√6sin x
化简(1)√3sin x+cos x (2)√2(sin x-cos x) (3)√2cos x-√6sin x
2(√3/2sinx+1/2cosx)=2sin(x+π/6)
√2*√2(√2/2sinx-√2/2cosx)=2sin(x-π/4)
(3)解;2√2(1/2cosx-√3/2sinx)=2√2cos(x+π/3)
(1) 原式= 2 (√3/2 sin x+1/2cos x )=2 sin(x+π/6)
(2) 原式= 2 (√2/2sin x-√2/2cos x)=2sin(x-π/4)
(3) 原式= 2√2 (1/2cos x-√3/2sin x)= 2√2 cos(x+π/3)
cos x/sin x+sin x/(1+cos x) 化简.
化简(1)√3sin x+cos x (2)√2(sin x-cos x) (3)√2cos x-√6sin x
化简 1/2cos x-根号3/2sin x 根3sin x+cos x
化简[1-(sin^4x-sin^2cos^2x+cos^4x)/(sin^2)]+3sin^2x
化简(sin x+cos x-1)(sin x-cos x+1)/sin 2x
化简[1-(sin^4 x-sin^2 xcos^2 x+cos^4 x)]/(sin^2 x)+3sin^2 x
化简sin(x)(cos(x)+cos(3x)+cos(5x)+cos(7x))
cos x/( 1-sin x)化简
√3cos^2x-sin^2x化简
化简√3sin (x/2)+cos(x/2)
化简 1/2cos x-根号3/2sin x
第一题1/2cos x-√3/2sin x 第二题√3sin x+cos x 第三题√2[sin x-cos x] 第四题√2cos x-√6sin x
化简sin x/(1-cos x)√[(tan x-sin x)(tan)]化简sin x/(1-cos x)√[(tan x-sin x)/(tan x+sin x)]
√3 cos²x-sin²x-√3sin²x化简
化简 1-sin^4x-cos^4x/1-sin^6x-cos^6x
化简(1-cos^4x-sin^4x)/(1-cos^6x-sin^6x)
化简:(1+sin x-cos x)/(1+sin x+cos x) 谢
化简y=sin^2(x)+2sin(x)cos(x)+3cos^2(x)