How do you know how to solve sec 45?
2 Answers
Explanation:
we have an isosceles right triangle
where the ratio of its sides are
Cosine = adjacent/hypotenuse
1/cosine=hypotenuse/adjacent
thus:
Explanation:
We know that
On the unit circle, the coordinates for
This means
Which also means that
which simplifies to
The convention is to not have an irrational number in the denominator, so we can multiply the top and bottom by
Hope this helps!