27 Июл 2019 в 19:40
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To solve the trigonometric equation 6sin(x) + 5cos(x) - 2 = 0, we can rewrite it in terms of a single trigonometric function.

First, note that sin^2(x) + cos^2(x) = 1 (identity of trigonometric functions).

Now, let's multiply both sides of the equation by √(6^2 + 5^2) = √61 to get rid of the coefficients in front of sin(x) and cos(x) terms:

√61 6sin(x) + √61 5cos(x) - √61 * 2 = 0
6√61sin(x) + 5√61cos(x) - 2√61 = 0

Now, we can rewrite the left side of the equation as 6√61[sin(x)cos(α) + cos(x)sin(α)], where cos(α) = 6/√61 and sin(α) = 5/√61:

6√61[sin(x)cos(α) + cos(x)sin(α)] - 2√61 = 0
6√61sin(x+α) - 2√61 = 0

Therefore, the solution to the equation 6sin(x) + 5cos(x) - 2 = 0 is sin(x + α) = 2/3√61, where α is the angle whose sin and cos values are determined by the coefficients in front of sin(x) and cos(x) terms.

20 Апр 2024 в 15:27
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