write the function cot(pi/5) in terms of the cofunction of a complementary angle
To write cot(pi/5) in terms of the cofunction of a complementary angle, we can use the fact that the cotangent function is equal to the tangent of the complementary angle.
The complementary angle to pi/5 is pi/2 - pi/5 = 3pi/10.
So, cot(pi/5) = tan(3pi/10).
cot(pi/5) can be written as tan(3pi/10) in terms of the cofunction of a complementary angle.
I hope this helps! Let me know if you have any further questions.