what is tan 90

what is tan 90


4 Answers

Ashwin Muralidharan IIT Madras
290 Points
12 years ago

Hi Vijaya Ragavan:


Tan90 = sin90/cos90.


And we know cos90 = 0.

So tanx, as x→90 will tend to infinity.


As such tan90 is not defined, because cos90 is in the denominator (which is 0) No fraction should have 0 in the denominator.


Best Regards,

Ashwin (IIT Madras).

Naveen Jafer
14 Points
12 years ago

it is undefined because it is a number divided by zero


Menka Malguri
39 Points
12 years ago

tan 90° is the tangent(slope) of a line making 90° with the x-axis.

tan 90°=infinity(∞)

31 Points
12 years ago

not define

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