Question

3cot 40/ tan 50 - 1/2 (cos 35/ sin 55)​ help

Answer 1

3 cot 40/tan 50 - 1/2 (cos 35 / sin55 )

3cos (90-40) / tan50 -1/2 (cos (90-35) / sin55)

3tan50/ tan50 - 1/2 (sin55/ sin55)

3×1 / 1 - 1/2

6-1/2=5/2