How to prove it's an identity
sin y + sin 3y + sin 5y + sin 7y = 4 cos y cos 2y sin 4y
1 answer:
Answer:
0.9777102203
Step-by-step explanation:
the identity is 0.9777102203
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loaded diper
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D
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Answer:
160
Step-by-step explanation:
13² - 3² = 13 × 13 - 3 × 3 = 169 - 9 = 160
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Hope this helps, If it is pls Brainliest !!
Answer:
9x + 90
Step-by-step explanation:
Given
9(x + 10) ← multiply each term in the parenthesis by 9 )
= 9x + 90
