Question

Prove:
(sin pi/3)*(cos pi /6)+(tan pi/6)*(tan pi/3)+cos (pi)=3/4

Answer 1

sin pi/3 = sqrt(3)/2
cos pi/6= sqrt(3)/2
tan pi/6= 1/sqrt(3)
tan pi/3 = sqrt(3)
cos pi = -1

Answer 2

proof :)

Answer 3

not proved

Answer 4

1/sqrt(3) *sqrt(3) "sqrt(3) will cancel out

Answer 5

3/4-1

Answer 6

-1/4 :/ ??