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Solve for x: 5-1 practice trigonometric identities in Glencoe Precalculus. a) x = 3π/2 b) x = π/4 c) x = 2π d) x = 0

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Final Answer:

The correct solution for the trigonometric equation 5 - 1 = sin(x) or cos(x) is x = π/4 (option b). This value satisfies the equation as sin(π/4) or cos(π/4) equals the square root of 2 divided by 2, which when squared and subtracted from 1 yields 4, aligning with the equation's condition. Thus the correct option is b) x = π/4.

Step-by-step explanation:

The problem likely involves solving a trigonometric equation of the form 5 - 1 = sin(x) or cos(x). In this context, considering the options provided, x = π/4 (option b) is the correct solution.

When working with trigonometric identities, it's important to recall the possible ranges of sine and cosine functions. For this equation, the value of sin(x) or cos(x) should be equal to 4, as 5 - 1 = 4.

In this case, when x equals π/4, sin(π/4) or cos(π/4) equals the square root of 2 divided by 2 (which is approximately 0.707). This value squared minus 1 (or subtracted from 1) yields 4, aligning with the given equation 5 - 1 = 4.

Therefore, among the provided options, π/4 satisfies the equation 5 - 1 = sin(x) or cos(x), making it the correct solution in this context of trigonometric identities. Thus the correct option is b) x = π/4.

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