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USPshnik [31]
3 years ago
14

Verify the identity. cos (x - y) - cos (x + y) = 2 sin x sin y

Mathematics
1 answer:
ra1l [238]3 years ago
8 0
It is already in identity.
cos (x - y) - cos (x + y) = 2 sin(x) sin (y)
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Answer:

g(x)     x^2 - 5

------ = ---------   where x ≠ - 1/4

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Step-by-step explanation:

f(x) = 4x+1

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g(x)     x^2 - 5

------ = ---------  

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