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Cos A is the value of the trigonometric cosine function of the angle A. Check FAQs
cos A=1-2⋅sin(A/2)2
cos A - Cos A?sin(A/2) - Sin (A/2)?

Cos A in Terms of Sin A/2 Example

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Here is how the Cos A in Terms of Sin A/2 equation looks like with Values.

Here is how the Cos A in Terms of Sin A/2 equation looks like with Units.

Here is how the Cos A in Terms of Sin A/2 equation looks like.

0.9422Edit=1-2⋅0.17Edit2
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HomeIcon Home » Category Math » Category Trigonometry and Inverse Trigonometry » Category Trigonometry » fx Cos A in Terms of Sin A/2

Cos A in Terms of Sin A/2 Solution

Follow our step by step solution on how to calculate Cos A in Terms of Sin A/2?

FIRST Step Consider the formula
cos A=1-2⋅sin(A/2)2
Next Step Substitute values of Variables
∴ cos A=1-2⋅0.172
Next Step Prepare to Evaluate
∴ cos A=1-2⋅0.172
LAST Step Evaluate
∴cos A=0.9422

Cos A in Terms of Sin A/2 Formula Elements

Variables
Cos A
Cos A is the value of the trigonometric cosine function of the angle A.
Symbol: cos A
Measurement: NAUnit: Unitless
Note: Value should be between -1.01 to 1.01.
Formulas to find Cos AOpen Variable
Sin (A/2)
Sin (A/2) is the value of the trigonometric sine function of half of the given angle A.
Symbol: sin(A/2)
Measurement: NAUnit: Unitless
Note: Value should be between -1.01 to 1.01.
Formulas to find Sin (A/2)Open Variable

Credits

Creator Image
Created by Surjojoti Som LinkedIn Logo
Rashtreeya Vidyalaya College of Engineering (RVCE), Bangalore
Surjojoti Som has created this Formula and 200+ more formulas!
Verifier Image
Verified by Nayana Phulphagar LinkedIn Logo
Institute of Chartered and Financial Analysts of India National college (ICFAI National College), HUBLI
Nayana Phulphagar has verified this Formula and 1500+ more formulas!

Other Formulas to find Cos A

​Go Cos A in Terms of Angle A/2
cos A=cos(A/2)2-sin(A/2)2
​Go Cos A in Terms of Cos A/2
cos A=2⋅cos(A/2)2-1
​Go Cos A in Terms of Tan A/2
cos A=1-tan(A/2)21+tan(A/2)2

Other formulas in Trigonometric Ratios of A in Terms of Trigonometric Ratios of A to 2 category

​Go Sin A in Terms of Angle A/2
sin A=2⋅sin(A/2)⋅cos(A/2)
​Go Tan A in Terms of Tan A/2
tan A=2⋅tan(A/2)1-tan(A/2)2
​Go Sin A in Terms of Tan A/2
sin A=2⋅tan(A/2)1+tan(A/2)2
​Go Cot A in Terms of Cot A/2
cot A=cot(A/2)2-12⋅cot(A/2)

How to Evaluate Cos A in Terms of Sin A/2?

Cos A in Terms of Sin A/2 evaluator uses Cos A = 1-2*Sin (A/2)^2 to evaluate the Cos A, The Cos A in Terms of Sin A/2 formula is defined as the value of the trigonometric cosine function of the given angle A in terms of Sin A/2. Cos A is denoted by cos A symbol.

How to evaluate Cos A in Terms of Sin A/2 using this online evaluator? To use this online evaluator for Cos A in Terms of Sin A/2, enter Sin (A/2) (sin(A/2)) and hit the calculate button.

FAQs on Cos A in Terms of Sin A/2

What is the formula to find Cos A in Terms of Sin A/2?
The formula of Cos A in Terms of Sin A/2 is expressed as Cos A = 1-2*Sin (A/2)^2. Here is an example- 0.9422 = 1-2*0.17^2.
How to calculate Cos A in Terms of Sin A/2?
With Sin (A/2) (sin(A/2)) we can find Cos A in Terms of Sin A/2 using the formula - Cos A = 1-2*Sin (A/2)^2.
What are the other ways to Calculate Cos A?
Here are the different ways to Calculate Cos A-
  • Cos A=Cos (A/2)^2-Sin (A/2)^2OpenImg
  • Cos A=2*Cos (A/2)^2-1OpenImg
  • Cos A=(1-Tan (A/2)^2)/(1+Tan (A/2)^2)OpenImg
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