Answer:
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4b^2 - 16 =
4(b^2 - 4) =
4(b + 2)(b - 2)
Answer is A.
√6 + √2
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4
Answer:
See explanation
Step-by-step explanation:
The given trigonometric equation is
.
We take the inverse cosine of both sides to get:

to the nearest degree
None of the options satisfies the given equation.
But if the question is actually;

Then;
.
.
.
.
Or
.
In this case the answer will be B
5/22 I’m pretty that’s the answer