1.

Show that: (i) sin 50∘ cos 85∘=1−√2sin 35∘2√2 (ii) sin 25∘ cos 115∘=12(sin 140∘−1)

Answer»

Show that:
(i) sin 50 cos 85=12sin 3522
(ii) sin 25 cos 115=12(sin 1401)



Discussion

No Comment Found