Question

If sin 42° = x, then cos 48° = ?​

Answer 1

Answer:

sin 42°= x

cos theta = sin(90-theta)

cos 48°=sin(90-48)°

cos 48°=sin 42°

cos 48°=x

Answer 2

Step-by-step explanation:

sin 42° = cos (90°-42°)

sin42° = cos 48°

so, cos 48° = x