Question

Without using trigonometric tables,find the values of (1).sin 30 degree -sin 90 degree +2 cos 0 degree/tan 30 degree *tan 60 degree

Answer 1

sin30-sin90+2cos0/tan30*tan60
1/2-1+2*1/√3 *√3
1/2-1+2
1/2+1
3/2