hitung nilai trigonometri sin 22 x cos 23 + cos 22 X sin 23 mohon Bantuannya, gays:D

jawab
sin A cos B + cos A sin B = sin (A+B)
sin 22 cos 23 + cos 22 sin 23 = sin(22+23) =sin 45
= 1/2 √ 2

sin 22 x cos 23 + cos 22 * sin 23
= sin (22+23)
= sin 45
= 1/2 √2