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Cos 3A Formula

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Cos 3A is the value of the trigonometric cosine function of thrice the given angle A. Check FAQs

cos 3A = (4 \cdot {cos A}^{3}) - (3 \cdot cos A)

cos 3A - Cos 3A?cos A - Cos A?

Cos 3A Example

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Here is how the Cos 3A equation looks like with Values.

Here is how the Cos 3A equation looks like with Units.

Here is how the Cos 3A equation looks like.

0.5023 = (4 \cdot {0.94}^{3}) - (3 \cdot 0.94)

0.5023 = (4 \cdot {0.94}^{3}) - (3 \cdot 0.94)

0.5023 = (4 \cdot {0.94}^{3}) - (3 \cdot 0.94)

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Cos 3A Solution

Follow our step by step solution on how to calculate Cos 3A?

FIRST Step Consider the formula

cos 3A = (4 \cdot {cos A}^{3}) - (3 \cdot cos A)

Next Step Substitute values of Variables

∴

cos 3A = (4 \cdot {0.94}^{3}) - (3 \cdot 0.94)

Next Step Prepare to Evaluate

∴

cos 3A = (4 \cdot {0.94}^{3}) - (3 \cdot 0.94)

Next Step Evaluate

∴

cos 3A = 0.502336

LAST Step Rounding Answer

∴

cos 3A = 0.5023

Cos 3A Formula Elements

Variables

Cos 3A

Cos 3A is the value of the trigonometric cosine function of thrice the given angle A.

Symbol: cos 3A

Measurement: NAUnit: Unitless

Note: Value should be between -1.01 to 1.01.

Formulas to find Cos 3A

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 A

Other formulas in Triple Angle Trigonometry Identities category

Go Sin 3A

sin 3A = (3 \cdot sin A) - (4 \cdot {sin A}^{3})

Go Tan 3A

tan 3A = \frac{(3 \cdot tan A) - {tan A}^{3}}{1 - (3 \cdot {tan A}^{2})}

Go Cot 3A

cot 3A = \frac{3 \cdot cot A - {cot A}^{3}}{1 - 3 \cdot {cot A}^{2}}

How to Evaluate Cos 3A?

Cos 3A evaluator uses Cos 3A = (4*Cos A^3)-(3*Cos A) to evaluate the Cos 3A, The Cos 3A formula is defined as the trigonometric cosine function of thrice the given angle A. Cos 3A is denoted by cos 3A symbol.

How to evaluate Cos 3A using this online evaluator? To use this online evaluator for Cos 3A, enter Cos A (cos A) and hit the calculate button.

FAQs on Cos 3A

What is the formula to find Cos 3A?

The formula of Cos 3A is expressed as Cos 3A = (4*Cos A^3)-(3*Cos A). Here is an example- 0.502336 = (4*0.94^3)-(3*0.94).

How to calculate Cos 3A?

With Cos A (cos A) we can find Cos 3A using the formula - Cos 3A = (4*Cos A^3)-(3*Cos A).

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