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Formula of Multiple Angle

In this article we will learn about Multiple Angle



Sin2θ= 2SinθCosθCos2θ= Cos²θ-Sin²θCos2θ= 2Cos²θ-1Cos2θ= 1-2Sin²θ1+Cos2θ= 2Cos²θ1-Cos2θ= 2Sin²θTan²θ= (1-Cos2θ)/(1+Cos2θ)Sin2θ= (2Tanθ)/(1+Tanθ)Cos2θ= (1-Tan²θ)/(1+Tan²θ)Tan2θ= (2Tanθ)/(1-Tan²θ)Sin3θ= 3Sinθ-4Sin³θCos3θ= 4Cos³θ-3CosθTan3θ= (3Tanθ-tan³θ)/(1-3Tan²θ) I hope you have find this article helpful. If you like this article then you can share this article with your friends also you can Subscribe to our blog. I will try to update all useful Mathematical Formula. Thanks for reading this article.

Formula of Compound Angle

In this article we will learn about Compound Angle

Compound Angle
Compound Angle


  • Sin(A+B)= SinACosB+CosASinB
  • Sin(A-B)= SinACosB-CosASinB
  • Cos(A+B)= CosACosB-SinASinB
  • Cos(A-B)= CosACosB+SinASinB
  • Sin(A+B)Sin(A-B)= Sin²A-Sin²B=Cos²B-Cos²A
  • Cos(A+B)Cos(A-B)= Cos²A-Sin²B=Cos²B-Sin²A
  • Tan(A+B)= (TanA+TanB)/(1-TanATanB)
  • Tan(A-B)= (TanA-TanB)/(1+TanATanB)
  • Cot(A+B)= (CotACotB-1)/(CotB+CotA)
  • Cot(A-B)= (CotACotB+1)/(CotB-CotA)
  • Tan(A+B+C)= (TanA+TanB+TanC-TanATanBTanC)/(1-TanATanB-TanBTanC-TanCTanA)

I hope you have find this article helpful. If you like this article then you can share this article with your friends also you can Subscribe to our blog. I will try to update all useful Mathematical Formula. Thanks for reading this article.

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