SOLUTION: Write the sum as a product using a sum-to-product identity.
sin (-α) + sin (19α)
Select one:
a. 2 cos (-2α)sin(-10α)
b. 2 sin (-2α)cos(-10α)
c.
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-> SOLUTION: Write the sum as a product using a sum-to-product identity.
sin (-α) + sin (19α)
Select one:
a. 2 cos (-2α)sin(-10α)
b. 2 sin (-2α)cos(-10α)
c.
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Question 1093833: Write the sum as a product using a sum-to-product identity.
sin (-α) + sin (19α)
Select one:
a. 2 cos (-2α)sin(-10α)
b. 2 sin (-2α)cos(-10α)
c. 2 sin (-2α)sin(-10α)
d. 2 sin (9α)cos(-10α) Answer by Alan3354(69443) (Show Source):
