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1 October, 07:01

T or F

The y-value of y = tan (x) when x = - 90° and x = 90° is 0.

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  1. 1 October, 08:20
    0
    It is false because tan 90° or tan (-90°) is infinity.

    Step-by-step explanation:

    Tan 90° = sin 90°/cos 90°

    =1/0 which is infinite value
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