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Please provide a list of all trignometric formulas in class 11!

Please provide a list of all trignometric formulas in class 11!

Grade:11

3 Answers

Manish
27 Points
6 years ago

List of Trigonometry Class 11 Formulas
sin(−θ)=−sinθ
cos(−θ)=cosθ
tan(−θ)=−tanθ
cosec(−θ)=−cosecθ
sec(−θ)=secθ
cot(−θ)=−cotθ

Product to Sum Formulas
sinx siny=12[cos(x–y)−cos(x+y)]
cosxcosy=12[cos(x–y)+cos(x+y)]
sinxcosy=12[sin(x+y)+sin(x−y)]
cosxsiny=12[sin(x+y)–sin(x−y)]

Sum to Product Formulas
sinx+siny=2sin(x+y2)cos(x−y2)
sinx−siny=2cos(x+y2)sin(x−y2)
cosx+cosy=2cos(x+y2)cos(x−y2)
cosx−cosy=–2sin(x+y2)sin(x−y2)

Basic Formulas

sin(A+B)=sinAcosB+cosAsinB sin(A−B)=sinAcosB–cosAsinB cos(A+B)=cosAcosB–sinAsinB cos(A–B)=cosAcosB+sinAsinB tan(A+B)=tanA+tanB1–tanAtanB tan(A–B)=tanA–tanB1+tanAtanB cos(A+B)cos(A–B)=cos2A–sin2B=cos2B–sin2A sin(A+B)sin(A–B)=sin2A–sin2B=cos2B–cos2A sin2A=2sinAcosA=2tanA1+tan2A cos2A=cosA–sin2A=1–2sin2A=2cos2A–1=1−tan2A1+tan2A tan2A=2tanA1–tan2A
Please excuse me that I couldnt put the divided by lines wherever there is ann empty space assume lines there.
Hope it helped you!
ankit yadav
12 Points
6 years ago
Salo apni maa chudaonahi to apni behan chuda lekoi mil nahi raha to mujhe bula lebehanchod madarchod
ankit yadav
12 Points
6 years ago
sorry mere dost ne majak majak mein likh diya tha dont mindmaf kar do bhaisorry gjgtwgt.hjtgqh.hjuwdtagj.gthph

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