Question

Sin(60+teta)-cos(30-teta) is equal to

Answer 1

Answer:sin(teta)+cos(teta)

Explanation:sin60=root3/2.. cos 30=root3/2. =) Root3/2-root3/2+sinteta+costeta=sinteta+costeta

Answer 2

Answer:

Explanation: sin(60+Ф)-cos(30-Ф)

     sin(60+Ф)- sin(90-(30-Ф))

     sin(60+Ф)-sin(60+Ф)

     =0