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neariah24
07.04.2020 •
Mathematics
Find the sum of these two trinomials.
(4a^3 – 5a^2 + 6a) + (a^3 + 2a - 3)
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Ответ:
(4a^3 – 5a^2 + 6a) + (a^3 + 2a - 3)
Remove parentheses:
4a^3 – 5a^2 + 6a + a^3 + 2a - 3
Group like terms:
4a^3+a^3-5a^2+6a+2a-3
Add similar elements 4a^3+a^3:
4a^3+a^3= 5a^3
5a^3 -5a^2+6a+2a-3
Add similar elements 6a+2a:
6a+2a= 8a
5a^3-5a^2+8a-3
Your Answer Is 5a^3-5a^2+8a-3
plz mark me as brainliest :)
Ответ:
, because the cosine and sine are complements
Step-by-step explanation:
Sine and cosine are trigonometric complementary functions. If we are talking about a right triangle we will have the following:
(1)
(2)
Let's prove it:
(3)
(4)
(5)
(6)