Cos^4A - sin^4A = COS2A
1 answer:
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Answer:
where −5 ≤ x ≤ 3
Step-by-step explanation:
The given function is .
We want to select the option that describes all the solutions to the parabola.
The domain of the parabola is −5 ≤ x ≤ 3.
This means that any x=a on −5 ≤ x ≤ 3 that satisfies (a,f(a)), is a solution.
This can be rewritten as
Therefore for x belonging to −5 ≤ x ≤ 3, all solutions are given by:
where −5 ≤ x ≤ 3.
Answer:
Step-by-step explanation:
First step:
Convert the mixed numbers to the improper fractions:
Divide by a fraction is the same as multiply by the reciprocal of this fraction.
Therefore: