Cos (A-B) Formula

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Cos (A-B) is the value of the trigonometric cosine function of the difference between the two given angles, angle A and angle B. Check FAQs
cos(A-B)=(cos Acos B)+(sin Asin B)
cos(A-B) - Cos (A-B)?cos A - Cos A?cos B - Cos B?sin A - Sin A?sin B - Sin B?

Cos (A-B) Example

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With units
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Here is how the Cos (A-B) equation looks like with Values.

Here is how the Cos (A-B) equation looks like with Units.

Here is how the Cos (A-B) equation looks like.

0.9878Edit=(0.94Edit0.87Edit)+(0.34Edit0.5Edit)
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Cos (A-B) Solution

Follow our step by step solution on how to calculate Cos (A-B)?

FIRST Step Consider the formula
cos(A-B)=(cos Acos B)+(sin Asin B)
Next Step Substitute values of Variables
cos(A-B)=(0.940.87)+(0.340.5)
Next Step Prepare to Evaluate
cos(A-B)=(0.940.87)+(0.340.5)
LAST Step Evaluate
cos(A-B)=0.9878

Cos (A-B) Formula Elements

Variables
Cos (A-B)
Cos (A-B) is the value of the trigonometric cosine function of the difference between the two given angles, angle A and angle B.
Symbol: cos(A-B)
Measurement: NAUnit: Unitless
Note: Value should be between -1.01 to 1.01.
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.
Cos B
Cos B is the value of the trigonometric cosine function of the angle B.
Symbol: cos B
Measurement: NAUnit: Unitless
Note: Value should be between -1.01 to 1.01.
Sin A
Sin A is the value of the trigonometric sine function of the angle A.
Symbol: sin A
Measurement: NAUnit: Unitless
Note: Value should be between -1.01 to 1.01.
Sin B
Sin B is the value of the trigonometric sine function of the angle B.
Symbol: sin B
Measurement: NAUnit: Unitless
Note: Value should be between -1.01 to 1.01.

Other formulas in Sum and Difference Trigonometry Identities category

​Go Sin (A+B)
sin(A+B)=(sin Acos B)+(cos Asin B)
​Go Cos (A+B)
cos(A+B)=(cos Acos B)-(sin Asin B)
​Go Sin (A-B)
sin(A-B)=(sin Acos B)-(cos Asin B)
​Go Tan (A+B)
tan(A+B)=tan A+tan B1-(tan Atan B)

How to Evaluate Cos (A-B)?

Cos (A-B) evaluator uses Cos (A-B) = (Cos A*Cos B)+(Sin A*Sin B) to evaluate the Cos (A-B), The Cos (A-B) formula is defined as the value of the trigonometric cosine function of the difference between the two given angles, angle A and angle B. Cos (A-B) is denoted by cos(A-B) symbol.

How to evaluate Cos (A-B) using this online evaluator? To use this online evaluator for Cos (A-B), enter Cos A (cos A), Cos B (cos B), Sin A (sin A) & Sin B (sin B) and hit the calculate button.

FAQs on Cos (A-B)

What is the formula to find Cos (A-B)?
The formula of Cos (A-B) is expressed as Cos (A-B) = (Cos A*Cos B)+(Sin A*Sin B). Here is an example- 1.0218 = (0.94*0.87)+(0.34*0.5).
How to calculate Cos (A-B)?
With Cos A (cos A), Cos B (cos B), Sin A (sin A) & Sin B (sin B) we can find Cos (A-B) using the formula - Cos (A-B) = (Cos A*Cos B)+(Sin A*Sin B).
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