Question

(a + 3)cos (x + 2) = –1​

Answer 1

Ответ:

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Объяснение:

Answer 2

To solve the equation (a + 3)cos(x + 2) = -1 for x, you can follow these steps:

1. Divide both sides of the equation by (a + 3) to isolate the cosine term:

   cos(x + 2) = -1 / (a + 3)

2. To solve for x, you can use the inverse cosine function (also known as arccosine) on both sides of the equation to eliminate the cosine:

   x + 2 = arccos(-1 / (a + 3))

3. Now, subtract 2 from both sides to isolate x:

   x = arccos(-1 / (a + 3)) - 2

So, the solution for x in terms of a is:

x = arccos(-1 / (a + 3)) - 2