Inverse Tangent Calculator

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Inverse tangent is the inverse of the commonly used trigonometric function, tangent of an angle. Inverse tangent is also called as the Arctan of a given number. By finding inverse tangent of a value gives us back its respective angle. Inverse tangent calculator is the online quick tool which can easily calculate the inverse tangent of any number.

Example 1: Find the inverse tangent value of 1.

The notation for the inverse tangent of 1 tan-1(1)

In order to find the inverse tangent of ‘1’, we use the following method:

’1’ can be written as ‘tan(45°)’ since  tan(45°) = 1

Hence  tan-1(1) = tan-1(tan45°)

Now the answer by the ‘tangent’ formula is   45°

Hence the angle in degrees for the inverse tangent, tan-1(1) = 45°

 
Example 2: Find the inverse tangent value of 0.

The notation for the inverse tangent of 0   tan-1(0)

In order to find the inverse tangent of ‘0’, we use this method.

’0’ can be written as ‘tan(0°)’ since  tan(0°) = 0

Hence  tan-1(0) = tan-1(tan0°)

Now the answer by the ‘tangent’ formula is  0°

Hence the angle in degrees for the inverse tangent, tan-1(0) = 0°



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