Simplification: Tan α (COS α - sin α) + sin α (sin α + Tan α) / 1 + cos α

Simplification: Tan α (COS α - sin α) + sin α (sin α + Tan α) / 1 + cos α

Cut string
tanα(cosα-sinα)+sinα(sinα+tanα)/1+cosα.
=sinα(cosα-sinα)/cosα+sinα(sinα+sinα/cosα)/(1+cosα)
=sinα(cosα-sinα)/cosα+sin²α(cosα+1)/[cosα(1+cosα)]
=sinα(cosα-sinα)/cosα+sin²α/cosα
=(sinαcosα-sin²α-sin²α)/cosα
=sinα

sin cos tan 1 CSC / (COT + tan) reduced to Cos 2 Tan + CoS / (1 + sin) reduced to sec 3 (Tan + sec) / (sec - cos + tan) reduced to CSC

One
csc/(cot+tan)
=1/sin/(sin/cos+cos/sin)
=1/sin/(1/sin cos)
=cos
Two
tan+cos/(1+sin)
=sin/cos+cos/(1+sin)
=(sin+sin²+cos²)/(cos(1+sin))
=(1+sin)/(cos(1+sin))
=sec
Three
tan+sec=sin/cos+1/cos=(1+sin)/cos
sec-cos+tan=1/cos-cos+sin/cos=(1-cos²+sin)/cos=sin(1+sin)/cos
(tan+sec)/(sec-cos+tan)=1/sin=csc

Simplification [(Tan θ * sin θ) / (Tan θ - 1)] + [cos θ / (1-tan θ)]

The original formula = (COS θ - Tan 2 θ cos θ) / 1-tan θ
=cosθ(1+tanθ)(1-tanθ)／(1-tanθ)
=cosθ+sinθ

Simplify sin α. Cos α (Tan α + Tan α)

Sin α · cos α (Tan α + 1 / 2 of Tan α)
=sinacosa(sina/cosa+cosa/sina)
=sin²a+cos²a
=1

Simplify the process, velocity and velocity of sin (540 ° - a) Tan (a-180 °) cos (a-270 °) / cos (a-360 °) Tan (720 ° + a) sin (- a-360 °)!

sin(540°-a)=sin(180-a)=sina
tan(a-180)=tana
cos(a-270)=cos(a+90)= - sina
cos(a-360)=cosa
tan(720+a)=tana
sin(-a-360)= - sina
The formula you wrote is not very standard, so you can put it into the calculation by yourself. These calculation formulas should be very skilled. Take a good look at the textbook,
If you have any questions, please continue to ask,

Simplify (sin (540 ° - x)) / (Tan (900 ° - x)) * (1 / (Tan (450 ° - x) Tan (810 ° - x)) * ((COS (360 ° - x)) / (sin (- x))

Sin (540-x) = sin (360 + 180-x) = sin (180-x) = sinxtan (900-x) = Tan (- x) = - tanxtan (450-x) = Tan (360 + 90-x) = Tan (90-x) = cotxtan (810-x) = Tan (720 + 90-x) = Tan (90-x) = cotxcos (360-x) = cos (- x) = cosasin (- x) = - SiNx, so the original formula = (- SiNx / TaNx)

Simplification: [sin (540 ° - a) Tan (a-270 °) cos (a-270 °)] / [cos (a-180 °) Tan (810 ° + a) sin (- a-180 °)]

sin(540°-a)=sina
tan(a-270°)=-cosa/sina
sin(540°-a)tan(a-270°)cos(a-270°)=-cosa
cos(a-180°)=-cosa
tan(810°+a)=tana=sina/cosa
sin(-a-180°)=sina
cos(a-180°)tan(810°+a)sin(-a-180°)=-sin^2a
：[sin(540°-a)tan(a-270°)cos(a-270°)]/[cos(a-180°)tan(810°+a)sin(-a-180°)]
=-cosa/sin^2a

Simplification: sin (π - a) cos (2 π - a) Tan (- A + π / 2) / cos (- a) Simplification: [sin (π - a) cos (2 π - a) Tan (- A + π / 2)] / [cos (- a)]

Simplification by induction formula and COTA = cosa / Sina
[sin(π-a)cos(2π-a)tan(-a+π/2)]/[cos(-a)]
=[sina*cosa*cota]/cosa
=sina*cosa/sina
=cosa
Hope to help you, do not understand, please ask

Simplification of sin (- 2) + cos (- 2 - π) · Tan (2-4 π)

sin(-2)+cos(-2-π)tan(2-4π)
=-sin2+cos(π-2)tan2
=-sin2+cos2tan2
=-sin2+sin2
=0

Simplification; cos (2-A) cos (PAI + a) Tan squared (2-A) / sin (pai-a) sin (2-A) Tan (pai-a)

Cos (pie-a) cos (PAI + a) Tan squared (pie-a) / sin (pai-a) sin (pie-a) Tan (pai-a)
=[cosa(-cosa)tan²a]/[sina*(-sina)*(-tana)]
=(-sin²a)/(sin²a*tana)
=-1/tana