# The general solution of the equation 2cos2x=3.2cos²x-4 is?

No real solution.

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To find the general solution of the equation (2\cos(2x) = 3.2\cos^2(x) - 4), follow these steps:

- Rewrite (2\cos(2x)) using the double angle identity: (2\cos(2x) = 2(2\cos^2(x) - 1)).
- Substitute (2(2\cos^2(x) - 1)) for (2\cos(2x)) in the equation: (2(2\cos^2(x) - 1) = 3.2\cos^2(x) - 4).
- Simplify the equation.
- Solve the resulting quadratic equation for (\cos(x)).
- Find the solutions for (x) using the values of (\cos(x)).
- Express the solutions in terms of (x), representing the general solution.

The general solution of the equation (2\cos(2x) = 3.2\cos^2(x) - 4) is determined by solving the resulting quadratic equation for (\cos(x)) and finding the corresponding values of (x).

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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