# What does #tan(2arcsin(12)+cos(arc cot(4))# equal?

Sine of an angle

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The expression provided contains a mistake as the input to the arcsin function is greater than 1. The domain of the arcsin function is [-1, 1], meaning it cannot take a value of 12 as its argument. Could you please check the expression and provide a corrected version?

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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