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C C Chap 10 Trigonometry is about RIGHT-ANGLED TRIANGLES. ↳hypotenuse Lopposite side Ladjacent side reference angie acute angle in a right-angled A 4 sine / sin HAO iii opposite P adj Q " LY Trigonometry 7 cosine I cos tangent / tan TOA CAH SOH e.g. hypotenuse C adjacent reference angle hyp AABC & APGR are congruent A but the ref. L is different. B sin ¹(-) sin A = 0.78 LA Sin (0.78) = 51.3 (Id.p.) R } 1 of triangle trigonometric ratios ex. 1 TOA CAH SoH tangent of LX = cosine of Lx adj hyp Sine of Lx = cos Ly= AB is the hypotenuse. CB is the adjacent side because it is next to/beside the reference angle, Lx. AC is the opposite side because it is opposite the reference angle. OPP hyp · PR is the hypotenuse • PQ is the adjacent side. - Ra is the opposite side tan Ly trigonometric ratios ex. 2 opp finding unknown angles in right-angled s - use calculator to type "inverse" SHIFT+Sin/SHIFT + COS/ SHIFT + tan (05-1(--) 10n-¹ (...) sin x 15 x² = sin() opp ady sin Ly = opp hyp = 43.0° (Id.p.) OPP gdj adj nyp tan Lx = Cos Lx = sin Lx = compulsory line for TRIGO! e.g. cas d' 20, 9= 8.9 finals (when the unknown is the subject.) TOA CAH SOH 5 T C S AAB C e.g. OPP adj adj hyp OPP hyp APQR O A A H O H Check the figure always! Oon't assume the reference L!! ZI Sin these 2 boxes, one of them con represent an unknown side and the other can be an actual length. you need 2 lengths and 1 angle USUALLY when applying Trigo. acm 15cm 670
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C C Chap 10 Trigonometry is about RIGHT-ANGLED TRIANGLES. ↳hypotenuse Lopposite side Ladjacent side reference angie acute angle in a right-angled A 4 sine / sin HAO iii opposite P adj Q " LY Trigonometry 7 cosine I cos tangent / tan TOA CAH SOH e.g. hypotenuse C adjacent reference angle hyp AABC & APGR are congruent A but the ref. L is different. B sin ¹(-) sin A = 0.78 LA Sin (0.78) = 51.3 (Id.p.) R } 1 of triangle trigonometric ratios ex. 1 TOA CAH SoH tangent of LX = cosine of Lx adj hyp Sine of Lx = cos Ly= AB is the hypotenuse. CB is the adjacent side because it is next to/beside the reference angle, Lx. AC is the opposite side because it is opposite the reference angle. OPP hyp · PR is the hypotenuse • PQ is the adjacent side. - Ra is the opposite side tan Ly trigonometric ratios ex. 2 opp finding unknown angles in right-angled s - use calculator to type "inverse" SHIFT+Sin/SHIFT + COS/ SHIFT + tan (05-1(--) 10n-¹ (...) sin x 15 x² = sin() opp ady sin Ly = opp hyp = 43.0° (Id.p.) OPP gdj adj nyp tan Lx = Cos Lx = sin Lx = compulsory line for TRIGO! e.g. cas d' 20, 9= 8.9 finals (when the unknown is the subject.) TOA CAH SOH 5 T C S AAB C e.g. OPP adj adj hyp OPP hyp APQR O A A H O H Check the figure always! Oon't assume the reference L!! ZI Sin these 2 boxes, one of them con represent an unknown side and the other can be an actual length. you need 2 lengths and 1 angle USUALLY when applying Trigo. acm 15cm 670
C C Chap 10 Trigonometry is about RIGHT-ANGLED TRIANGLES. ↳hypotenuse Lopposite side Ladjacent side reference angie acute angle in a right-angled A 4 sine / sin HAO iii opposite P adj Q " LY Trigonometry 7 cosine I cos tangent / tan TOA CAH SOH e.g. hypotenuse C adjacent reference angle hyp AABC & APGR are congruent A but the ref. L is different. B sin ¹(-) sin A = 0.78 LA Sin (0.78) = 51.3 (Id.p.) R } 1 of triangle trigonometric ratios ex. 1 TOA CAH SoH tangent of LX = cosine of Lx adj hyp Sine of Lx = cos Ly= AB is the hypotenuse. CB is the adjacent side because it is next to/beside the reference angle, Lx. AC is the opposite side because it is opposite the reference angle. OPP hyp · PR is the hypotenuse • PQ is the adjacent side. - Ra is the opposite side tan Ly trigonometric ratios ex. 2 opp finding unknown angles in right-angled s - use calculator to type "inverse" SHIFT+Sin/SHIFT + COS/ SHIFT + tan (05-1(--) 10n-¹ (...) sin x 15 x² = sin() opp ady sin Ly = opp hyp = 43.0° (Id.p.) OPP gdj adj nyp tan Lx = Cos Lx = sin Lx = compulsory line for TRIGO! e.g. cas d' 20, 9= 8.9 finals (when the unknown is the subject.) TOA CAH SOH 5 T C S AAB C e.g. OPP adj adj hyp OPP hyp APQR O A A H O H Check the figure always! Oon't assume the reference L!! ZI Sin these 2 boxes, one of them con represent an unknown side and the other can be an actual length. you need 2 lengths and 1 angle USUALLY when applying Trigo. acm 15cm 670
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Knowunity is the # 1 ranked education app in five European countries
Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.
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iOS User
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Stefan S, iOS User
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SuSSan, iOS User