Limit of - tan s does not exist or is undefined as s approaches from positive direction. In other words, if you approach this function from the right, - tan pie/2 goes to infinity as a result, the limit does not exist or undefined.

So the answer would be infinity correct?

Suggest to use " undefined" because in mathematics, it is more appropriate.

But if the answer choices contained -inf or +inf ? It would be positive infinity? Bc there is not undefined

If the answer choices contains -infinity then use" - infinity "

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