LCM of two numbers

Cos 2A given Cos A Calculator

✖Cos A is the value of the trigonometric cosine function of the angle A.ⓘ Cos A

+10%

-10%

✖Cos 2A is the value of the trigonometric cosine function of twice the given angle A.ⓘ Cos 2A given Cos A

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download Negative, Half, Double and Triple Angle Trigonometry Identities Formulas PDF PDF Image

Cos 2A given Cos A Solution

STEP 0: Pre-Calculation Summary

Formula Used

Cos 2A = (2*Cos A^2)-1
cos 2A = (2*cos A^2)-1
This formula uses 2 Variables

Variables Used

Cos 2A - Cos 2A is the value of the trigonometric cosine function of twice the given angle A.
Cos A - Cos A is the value of the trigonometric cosine function of the angle A.

STEP 1: Convert Input(s) to Base Unit

Cos A: 0.94 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

cos 2A = (2*cos A^2)-1 --> (2*0.94^2)-1

Evaluating ... ...

cos 2A = 0.7672

STEP 3: Convert Result to Output's Unit

0.7672 --> No Conversion Required

FINAL ANSWER

0.7672 <-- Cos 2A

(Calculation completed in 00.004 seconds)

You are here -

Home » Math » Trigonometry and Inverse Trigonometry » Trigonometry » Negative, Half, Double and Triple Angle Trigonometry Identities » Double Angle Trigonometry Identities » Cos 2A given Cos A

Credits

Created by Dhruv Walia

Indian Institute of Technology, Indian School of Mines, DHANBAD (IIT ISM), Dhanbad, Jharkhand

Dhruv Walia has created this Calculator and 1100+ more calculators!

Verified by Nikita Kumari

The National Institute of Engineering (NIE), Mysuru

Nikita Kumari has verified this Calculator and 600+ more calculators!

< Double Angle Trigonometry Identities Calculators

Tan 2A

LaTeX Go Tan 2A = (2*Tan A)/(1-Tan A^2)

Cosec 2A

LaTeX Go Cosec 2A = (Sec A*Cosec A)/2

Cos 2A

LaTeX Go Cos 2A = Cos A^2-Sin A^2

Sin 2A

LaTeX Go Sin 2A = 2*Sin A*Cos A

Cos 2A given Cos A Formula

LaTeX Go

Cos 2A = (2*Cos A^2)-1
cos 2A = (2*cos A^2)-1

What is Trigonometry?

Trigonometry is the branch of mathematics that deals with the relationships between the angles and sides of triangles, particularly right triangles. It is used to study and describe properties such as lengths, angles, and areas of triangles, as well as the relationships between these properties and the properties of circles and other geometric shapes. Trigonometry is used in many fields, including physics, engineering, and navigation.

How to Calculate Cos 2A given Cos A?

Cos 2A given Cos A calculator uses Cos 2A = (2*Cos A^2)-1 to calculate the Cos 2A, The Cos 2A given Cos A formula is defined as the value of the trigonometric cosine function of twice the given angle A, and calculated using the value of cosine function of the given angle A. Cos 2A is denoted by cos 2A symbol.

How to calculate Cos 2A given Cos A using this online calculator? To use this online calculator for Cos 2A given Cos A, enter Cos A (cos A) and hit the calculate button. Here is how the Cos 2A given Cos A calculation can be explained with given input values -> 0.7672 = (2*0.94^2)-1.

FAQ

What is Cos 2A given Cos A?

The Cos 2A given Cos A formula is defined as the value of the trigonometric cosine function of twice the given angle A, and calculated using the value of cosine function of the given angle A and is represented as cos 2A = (2*cos A^2)-1 or Cos 2A = (2*Cos A^2)-1. Cos A is the value of the trigonometric cosine function of the angle A.

How to calculate Cos 2A given Cos A?

The Cos 2A given Cos A formula is defined as the value of the trigonometric cosine function of twice the given angle A, and calculated using the value of cosine function of the given angle A is calculated using Cos 2A = (2*Cos A^2)-1. To calculate Cos 2A given Cos A, you need Cos A (cos A). With our tool, you need to enter the respective value for Cos A and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Cos 2A?

In this formula, Cos 2A uses Cos A. We can use 3 other way(s) to calculate the same, which is/are as follows -

Cos 2A = Cos A^2-Sin A^2
Cos 2A = (1-Tan A^2)/(1+Tan A^2)
Cos 2A = 1-(2*Sin A^2)

Home

FREE PDFs

🔍 Search