Question

(sin 35°/cos 55°)^2+(cos 43°/sin 45°)^2-2 cos 60°=​

Answer 1

Answer:

35+55=90

43+47=90

(sin35/cos(90-35))^2+(cos(90-47)/sin47)^2-2(cos60)

(sin35/sin35)^2+(sin47/sin47)^2-2(1/2)

1+1-1=1