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Hi what is the exact value of -(pi/12) ?

Answer 1

#-\frac{pi}{12} \approx -0.26179938779#

Do you mean the numeric value? We can't do much more than putting it into a calculator and read the number of digits we need, since the answer will be an infinite, non-repeating decimal number (these are known as trascendental numbers)

So, you may start with

#pi \approx 3.14159265359#

Then we divide by twelve:

#\frac{pi}{12} \approx 0.26179938779#

And finally change the sign:

#-\frac{pi}{12} \approx -0.26179938779#

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Answer 2

Oliver Atkinson

The exact value of (-\frac{\pi}{12}) is (-\frac{\pi}{12}).

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Answer from HIX Tutor

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.