Part one: Sequence and Series
1 answer:
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General equation of a circle with centre (h, k) is given by:
Now, the origin is the centre and radius is 20, so substituting these points in yields:
Now, the origin is the centre and radius is 20, so substituting these points in yields:
Answer:
2x² + x - 5
Step-by-step explanation:
(f + g)(x) = f(x) + g(x), thus
f(x) + g(x)
= - 2 + 2x² + x - 3 ← collect like terms
= 2x² + x - 5