at 9am the outside temperature was -3 degree by the noon the temperature was 12 degree a news reporter said it was getting warme
1 answer:
You might be interested in
By definitions of the (co)tangent and cosecant function,
Turn everything into fractions with common denominators:
Recall that , so we can simplify both sides a bit.
On the left:
On the right:
(as long as , which happens in the interval
when
or
)
So we have
