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Sladkaya [172]
3 years ago
8

Hello someone help please what is the product of (cosA+2)(cosA-3)​

Mathematics
1 answer:
svetoff [14.1K]3 years ago
7 0

Answer:

cos²A - cosA - 6

Step-by-step explanation:

Given

(cosA + 2)(cosA - 3)

Each term in the second factor is multiplied by each term in the first factor, that is

cosA(cosA - 3) + 2(cosA - 3) ← distribute both parenthesis

= cos²A - 3cosA + 2cosA - 6 ← collect like terms

= cos²A - cosA - 6

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