Double angle formula calculator

Enter value and click on calculate. Result will be displayed.

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Enter θ angle :

Result :
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What is a double angle? Double angle, as the words imply, means to increase the size of the angle to twice its size. It simply means two times of a trigonometric angle i.e. 2x in terms of x. Double-angle identities are used to simplify trigonometric calculations.
The double angle identity calculator finds the value of a double angle for any trigonometric function if the value of an angle is provided.
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