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What is the Value of Cosec 0 Degrees ?

Solution :

The value of Cosec 0 degrees is equal to or not defined.

Proof :

A is made smaller and smaller in the right Δ ABC till it becomes zero. As A gets smaller and smaller the length of the side BC decreases. The point C gets closer to the point B and finally when A becomes very close to 0 degrees, AC becomes almost the same as AB, and BC gets very close to 0.

0 degrees

By using trigonometric formula,

Cosec A = hypontenuseperpendicular = hp

Cosec A = ACBC = AC0 = 10 = not defined

Hence,  cosec0 = or not defined.

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