10sin 150° 11sin 300° 12sin (−300°) 13cos (−30°) 14cos 510° 15cos 60°+cos(−60°) 16cos 280° 17cot ³ 300° 18cot 150° 19cos 300° 20sin 30° 21cos 30° 22tan 30° 23cos α < 0 ∧ cot α < 0 30cot 120° 313.sin³(− 30°) 32cos²150° − cos²60° 33cos⁴ 135° 34sin²240° 35verwante hoeken varia 36sin² 225°+ tan 225° 37tan 300°.cot 400°.tan 500° 38cos60°+cos120°
  +cos240°+cos480° 39tan⁴ 300° 40tan⁴ (−60° ) = 41sin² 150° + sin³ 210° 42tan 135° + sin² 125° 43tan³ 300° 44sin 150° + cos² 135° 45tan 50°.tan 40°.tan 400° 46hoeveel juist ? 47cos (270°+ x) 48\( \frac{\sin 2000^\circ}{\sin 20^\circ}+\frac{\cos 2000^\circ}{\cos 20^\circ} \) 49sin150°+cos²135°+tan³135° 50sin⁰60° + cos⁰60° + sin²60° + cos²60°

50cos ( α − β ) 51 = ? 52sin (−α ) + cos (−α ) = 53cos 2(90° − α ) 54cos (α − 30° ) = ½ 55cos 2(180°−α) 56sin x = ? 57welke juist ? 58helft van  − 59sin --> cos 603 goniom.formules 61sin(a+b)=cos(...) 62sin 3(180°− x) 63sin (x − 90°) 64sin (90° + x) 65sin x + sin (90°- x)
 +sin(180°- x)+sin(270°- x) 66sin x + sin(90°+x)
 + sin (180°+x) + sin (270°+x) 67 >sin x > cos x 68cosx+cos(90°+x)+cos(180°+x)+cos(270°+x) 69sinx=0,8 ⇒ cos(180°− x) = ? 70− sin x = ? 71sin1°+sin2°+...+cos359° 72cos1°+cos2°+...+cos359° 73cos(120° − x) = ? 74wie = cos α ? 75\(\frac{\sin^2\alpha\:-\:\cos^2\alpha }{\sin\, (-\alpha )\,-\,\cos\, (-\alpha )}\) 76cos1°+cos3°+...+cos179° 77GF + cos(180°−α) 78cos² (π + x ) + cos² (  + x) 80verwante hkn cos (2) 81\(\frac{\sin 2000^\circ}{\sin 20^\circ}+\frac{\cos 2000^\circ}{\cos 20^\circ} \) 82sin150°+cos²135°+tan³135° 83cos(90°−x)+cos(180°−x)
  + cos(270°−x) 84\(\cos\frac{360^\circ}{n}\, >\: \cos\frac{360^\circ}{n+1}\) 85\(\sin\frac{360^\circ}{n}\, \leq\: \sin\frac{360^\circ}{n+1}\) 86cos2α , cos4α 87sin (3.10ⁿ)° = ?

9090°+x ↔ 270°−x 91sin (270°− x) 92sin (270°+ x) 93cos (270°− x) 94sin x + sin (90°− x)
 +sin(180°− x)+sin(270°− x) 95sin x + sin (90° + x)
 +sin(180°+x)+sin(270°+x) 96tan x + tan( 90° + x)
 +tan(180°+ x) + tan( 270°+ x) 97tan ( 270° + α) 98cos (270° − x) = ...FOUT ? 99welke gelijkheid is JUIST ? 99'tan x.tan(90°-x).tan(180°-x).
  tan(270°-x) N_E_W-juli2024.svg

A0tan ( 270° − α) A1cot (α − β ) A23 keer tan A3 tan 40° A4tan30°.tan40°.tan50° A5tan (90° + x) A6vreemde eend (tan) A7tan 200°.tan 250°.tan 300° A8tan 300°.cot 400°.tan 500° A9tan 300°.cot 400°.tan 500° B0welk product is 1 ? B1\(\frac {1+\tan^2x} {1+\cot^2x} \) B2tan1°.tan2°.tan3°.....tan89° B3tan 10°.tan 80°.tan 800° B4cot10°.(3tan10°+8cot80°) B5tan(90° + α) B7tan x = ... B8tan x > cot x ?

C060° ↔ −60° C130° ↔ 150° C2welke correct ? C3welke fout ? C4welke juist ? C5cos (60,120,240,480,960) C6cos x ↔ cos (−x) C7verwante hkn cos C83 gelijkheden_1 C94 gelijkheden (90,270) D04 gelijkheden (60,120) D15 gelijkheden (90) D25 gelijkheden (180) D34 ongelijkheden (300,350) D45 ongelijkheden (160,260,..) D55 ongelijkheden (10,110,..) D65 ongelijkheden [0,140] D7vreemde eend (tan) D8alle drie juist ? (G.F.) D9welke is correct ? (π,) E0welke gelijkheid is JUIST ? E5alle drie correct ? (sin,cos) E6vreemde eend (sin)

F0complementair F1supplementair F2antisupplementair F3gon. cirkel - beeldpunten F55 ongelijkheden F64 ongelijkheden F7sin x > cos x F8positief ? F9trapezium in gon.cirkel G0trapezium in gon.cirkel G1tan x > cot x ? G2alleen tan G3sin (α + k.90° ) G4sin (α + k.60° )

G3grondformule G4(1+cosx)(1+cos(−x)) G5(1+cosx)(1−cos(−x)) G6(1+sinx)(1+sin(−x)) G7(1−sinx)(1−sin(−x)) 50sin⁰60° + cos⁰60;° + sin²60° + cos²60° G9grondformule(4)

V0100° en 260° V190°− x ↔ 90°+x V2in Δ :   2A en 2B+2C V3tegengesteld V4cos x + cot ² x V7(anti)supplementair V8complement van 222°33' V9complement van 110°30' W0verwante hkn varia W1verwante_hkn_90°+x W22x ² − 1 = 0 W3tan(90°+x).tan(270°+x) W4cos(−x)+sin(−x).tan(−x) W53de hoek in Δ W6sin(90°−α).cos(90°−α)
    .tan(90°−α) W7sin(180°−α).cos(180°−α)
    .tan(180°−α) W8sin(180°+α).cos(180°+α)
    .tan(180°+α) W8rechth. driehoek X0\(\frac{\tan(180^\circ\,-\:\alpha )}{\cos(90^\circ\,+\:\alpha )}\) X1\(\frac{\sin(90^\circ-x )}{\cot (180^\circ-x)}=\) X2f (tan 60°) + f (cot 60°)