How do you evaluate tan(pi/2+pi/6) . cot (pi-pi/6) . cos (pi/2-pi/6)tan(π2+π6).cot(π−π6).cos(π2−π6)?
1 Answer
Aug 13, 2016
Using identities for tan(A+B) and cos(A+B)
Explanation:
So tan(A-B)=
So cot(A-B) will be the reciprocal -
So A-
So =
"(tan(
=
Solving will give 1.5