Write the following sums or differences as a product (a)sin 2x + sin 3x (b)cos 5x- cos 3x (c)sin 4x -sin 2x (d)cos 3x + cos 6x?
1 Answer
Aug 28, 2015
Convert trig expressions into products
Explanation:
Reminder of sum and differences trig identities:
Answers:
a.
b.
c.
d.