How do you find the exact values of cot, csc and sec for 45 degrees?
Recall the definitions of the reciprocal trig identities:
On the unit circle, the coordinates for
We can plug these values into our expressions for the reciprocal identities to get
Hope this helps!
Label the lengths of the sides and the degrees of the angles. Keep this drawing handy.
You should have these memorized:
sine is opposite/hypotenuse
cosine is adjacent/hypotenuse
tangent is opposite/adjacent
This question is asking for cot, csc and sec. Memorize these facts too:
cosecant is 1/sine
secant is 1/cosine
cotangent is 1/tangent
So thinking about the above things in bold,
Now look at your drawing of the
I hope this helps,