Matemaatika valemid (3)

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Sin2α+cos2α=1
1+tan2α=1/cos2α
cotα=cosα/sinα
tanα=sinα/cosα
1+cot2α=1/sin2α
Tanα*cotα=1
sinα=cos(90°-α)
cosα=sin(90°-α)
tanα=1/tan(90°-α)=cot(90°-α)
cotα=1/cot(90°-α)=tan(90°-α)
0°
30°
45°
60°
90°
180°
270°
360°
sinα
0
½
√2/2
√3/2
1
0
-1
0
cosα
1
√3/2
√2/2
½
0
-1
0
1
tanα
0
√3/3
1
√3
p.
0
p.
0
cotα
p.
√3
1
√3/3
0
p.
0
p.
sin(180°-α)=sinα
sin(180°-α)=-sinα
cos(180°-α)=-cosα
cos(180°-α)=-cosα
tan(180°-α)=-tanα
tan(180°-α)=tanα
cot(180°-α)=-cotα
cot(180°-α)=cotα
sin(360°-α)=-sinα
sin(-α)=-sinα
cos(360°-α)=cosα
cos(-α)=cosα
tan(360°-α)=-tanα
tan(-α)=-tanα
cot(360°-α)=-cotα
cot(-α)=-cotα

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sin cos tan cot

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TRIGONOMEETRIA VALEMID

Sin2 + cos2 = 1 tan = cot = 1 + tan2 = 1 + cot2 = tan * cot =1 2 Cos = sin( 90- ) cot = 1+ cot = sin2 = 1- cos2 2 2 Cot = tan(90- ) tan = 1+ tan = cos = 1- sin2 2 Tan = cot(90- ) cot = sin(180- ) = sin tan (180 ) = - tan sin(180+ ) = - sin tan (180 + ) = tan sin(360- ) = - sin tan (360 ) = - tan sin( - ) = - sin tan ( ) = - tan cos (180- )= - cos cot (180 ) = - cot cos (180+ )= - cos cot (180 + ) = cot cos (360 ) = cos cot (360 ) = - cot cos( -) = cos cot ( ) = - cot cos = sin (90 -

Matemaatika

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Trigonomeetria valemileht

sin2 sin 2) tan = cos 2 sin2 tan = cos2 1 3) 1 + tan2 = cos2 Nurga trigonomeetriliste 2 tan tan2 = funktsioonide märgid veerandites 1 - tan2 Korrutiseks teisendamise valemid + - sin + sin = 2 sin cos 2 2 ; + - sin - sin = 2 cos sin 2 2

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TRIGONOMEETRIA VALEMID

Täiendusnurga valemid. sin (90 - ) =cos cos (90 - ) = sin tan (90 - ) = 1/tan = cot cot (90 - ) = 1/cot = tan Negatiivse nurga siinus, koosinus, tangens ja kootangens. sin (- ) = -sin cos (- ) = cos tan (- ) = -tan cot (- ) = -cot Trigonomeetria põhivalemid ja nende järeldused. sin 2 + cos2 = 1 tan =sin /cos cot =cos /sin tan cot =1 1+ tan 2 = 1/cos2 1 + cot2 = 1/sin2 sin 4 + cos4 = 1 - 2 sin2 cos2 sin 6 +cos6 = 1 - 3sin 2 cos2 Kahe nurga summa ja vahe siinus, koosinus, tangens ja kootangens. sin ( + ) =sin cos + cos sin tan ( + ) = tan + tan / (1 - tan tan ) sin ( - ) = sin cos - cos sin tan ( - ) = tan - tan / (1 + tan tan ) cos ( + ) = cos cos - sin sin cot ( + ) = cot cot -1/ (cot + cot ) cos ( - ) = cos cos + sin sin cot ( - ) = cot cot + 1 /( cot - cot ) Kahekordse nurga siinus, koosinus, tangens ja kootangens. sin 2 =2sin cos cos 2 =cos2 - sin 2

Matemaatika

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Siinused ja Coosinused

(a±b)³=a³±3a²b+3ab²±b³ Sin/cos=tan (a±b)(a²-+ab+b²)=a³±b³ Sin²+cos²=1 1+tan²=1/cos² c=a²+b²-2ab*cos cost tan*cot=1 cos=(b²+c²-a²)/2bc sint cot=cos/sin S=[p(p-a)(p-b)(p-c)] 1+cot²=1/sin² p=P/2_S=p*r_S=abc/4R a/sin=b/sin=c/sin=2R Sin(±)=sin*cos±sin*cos S=(ab*sin)/2 Cos(±)=cos*cos-+sin*sin Tan(±)=(tan±tan)/(1-+tan*tan) sin2=2sin*cos sin/2=±[(1-cos)/2] cos2=cos²-sin² cos/2=±[(1+cos)/2] tan2=2tan/(1-tan²) tan/2=±(1-cos)/(1+cos) tan/2=(1-cos)/sin l=xr l=/360°*2r tan/2=sin/(1+cos) S=xr²/2 S=/360°*r² 030°45°60°90°180°270°360°Sin00,52:23:21 0-10Cos13:22:20,50-101Tan03:313-0- 0Cot-313:30-0-

Matemaatika

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Trigonomeetria valemid, abistav materjal

2 2 sin α +cos α=1 sinα tanα= cosα sinα =cosα∗tanα sinα α =¿ tanα cos¿ cosα sinα = cotα 1 1+tan2 α = cos2 a cosα=sin ( 90 °−α ) sinα =cos ( 90 °−α ) 1 1+cot2 α = 2 sin α 1 tanα= = tan ⁡( 90−α ) = cot(90 ° - α ) 1 cot= tanα cos 2 α =12−sin 2 α sin 2 α =12−cos 2 α sin2 α sinα∗tanα= cosα 1 cosα = tanα sinα sin α cos α t a n α c o t α sin (−α )=−sin α cos(−α)=cos α tan (−α )=−tan α cot (−α )=−cot α 180 ° = π rad 2 π rad =360 ° π rad = 90 ° 2 180 ° Rad - Kraad = 1 ° ∙

Trigonomeetria

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Trigonomeetria taandamisvalemid

Matemaatika Trigonomeetria taandamisvalemid TAANDAMISVALEMID sin = sin(180 - ) = sin cos = cos(180 - ) = - cos tan = tan(180 - ) = - tan sin = sin(180 + ) = - sin cos = cos(180 + ) = - cos tan = tan(180 + ) = tan sin = sin(360 - ) = - sin cos = cos(360 - ) = cos tan = tan(360 - ) = - tan sin(-) = - sin cos(-) = cos tan(-) = - tan VERTIKAALTELJE JUURES TAANDAMINE sin(90 - ) = cos cos(90 - ) = sin tan(90 - ) = cot sin(90 + ) = cos cos(90 + ) = - sin tan(90 + ) = - cot sin(270 - ) = - cos cos(270 - ) = - sin tan(270 - ) = cot sin(270 + ) = - cos cos(270 + ) = sin tan(270 + ) = - cot VALEMID sin2 + cos2 = 1 tan*cot = 1 sin( + )=sin*cos + cos*sin sin( - )=sin*cos - cos*sin cos( + )=cos*cos - sin*sin cos( - )=cos*cos + sin*sin < a2 = b2 + c2 2bc cos ++-+-+ ---++- sin cos tan

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