Question No. 2

Lesson#3
Question No. 2
Q2:Express the following sums or differences as products:
(i): sin5θ+sin3θ
(ii): sin8θ−sin4θ
(iii): cos6θ+cos3θ
(iv): cos7θ−cosθ
(v): cos12°+cos48°
(vi): sin⁡(+30°)+ sin⁡(−30°)
Math.Ex.10.4, Part03-10.4
Q2:Express the following sums or differences as products:
(ii): sin8θ−sin4θ
(iii): cos6θ+cos3θ
(v): cos12°+cos48°
and Example # 3(page #335).
Solve yourself . . .
Trigonometric Identities
Chapter No 10
Exercise No 10.4
Mathematics
part 1