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Dipto Mandal
Indian Institute of Information Technology (IIIT), Guwahati
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Mona Gladys
St Joseph's College (St Joseph's College), Bengaluru
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11 Other formulas that you can solve using the same Inputs

Volume of a triangular prism when two angles and a side between them are given
Volume=Length*Side A^2*sin(Angle A)*sin(Angle B)/(2*sin(Angle A+Angle B)) GO
Side a of a triangle
Side A=sqrt((Side B)^2+(Side C)^2-2*Side B*Side C*cos(Angle A)) GO
Fourth angle of quadrilateral when three angles are given
Angle Between Sides=360-(Angle A+Angle B+Angle C) GO
Third angle of a triangle when two angles are given
Angle Between Sides=180-(Angle A+Angle B) GO
Side a of a triangle given side b, angles A and B
Side A=(Side B*sin(Angle A))/sin(Angle B) GO
Peak to Valley Height
Height=Feed/(tan(Angle A)+cot(Angle B)) GO
tan2A given angle A
tan2A=2*tan(Angle A)/1-tan(Angle A)^2 GO
Work
Work =Force*Displacement*cos(Angle A) GO
Chord Length when radius and angle are given
Chord Length=sin(Angle A/2)*2*Radius GO
Arc Length
Arc Length=2*pi*Radius*(Angle A/360) GO
sin2A given angle A
Sin2A=2*sin(Angle A)*cos(Angle A) GO

cos2A given angle A Formula

Cos2A given angle A=1-2*(sin(Angle A))^2
More formulas
Semiperimeter Of Triangle GO
Area of Triangle when semiperimeter is given GO
Radius of Inscribed Circle GO
Radius of circumscribed circle GO
Side a of a triangle GO
side b of a triangle GO
side c of a triangle GO
Side a of a triangle given side b, angles A and B GO
sin2A given angle A GO
tan2A given angle A GO

What is a cosine fucntion?

The cosine function is one of the three main primary trigonometric functions and it is itself the complement of sine(co+sine).

How to Calculate cos2A given angle A?

cos2A given angle A calculator uses Cos2A given angle A=1-2*(sin(Angle A))^2 to calculate the Cos2A given angle A, The cos2A given angle A formula is defined as twice the angle A given by the user Cos function (or cosine function) in a triangle is the ratio of the adjacent side to that of the hypotenuse. The cosine function is one of the three main primary trigonometric functions and it is itself the complement of sine(co+sine). Cos2A given angle A and is denoted by cos2a symbol.

How to calculate cos2A given angle A using this online calculator? To use this online calculator for cos2A given angle A, enter Angle A (∠A) and hit the calculate button. Here is how the cos2A given angle A calculation can be explained with given input values -> 0.5 = 1-2*(sin(30))^2.

FAQ

What is cos2A given angle A?
The cos2A given angle A formula is defined as twice the angle A given by the user Cos function (or cosine function) in a triangle is the ratio of the adjacent side to that of the hypotenuse. The cosine function is one of the three main primary trigonometric functions and it is itself the complement of sine(co+sine) and is represented as cos2a=1-2*(sin(∠A))^2 or Cos2A given angle A=1-2*(sin(Angle A))^2. The angle A is one of the angles of a triangle.
How to calculate cos2A given angle A?
The cos2A given angle A formula is defined as twice the angle A given by the user Cos function (or cosine function) in a triangle is the ratio of the adjacent side to that of the hypotenuse. The cosine function is one of the three main primary trigonometric functions and it is itself the complement of sine(co+sine) is calculated using Cos2A given angle A=1-2*(sin(Angle A))^2. To calculate cos2A given angle A, you need Angle A (∠A). With our tool, you need to enter the respective value for Angle A and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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