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Can't define as Tan 90=1/0 which can't defined.

0+1/0+0=1/0.i.e. infinity

inf or not defined

1/0= infinite

Infinite

Tutor

cos90=0, tan90= not defined/infinite, cot90=0, hence cos90+tan90+cot90= infinity

Infinte correct

infinity

Cos 90 = 0, tan 90= not defined, cot 90= 0 Hence 0+not defined +0= not defined or infinity

Cos90 + Tan90 + Cot90 = 0 + infinite + 0 = infinite

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