Question

3+3cos50°/1-cos130°​

Answer 1

(3+3cos50°) /(1-cos130°) =

=3(1+cos50°)/(1-cos(180°-50°))=

=3(1+cos50°)/(1+cos50°)=3

Ответ: 3

Answer 2

Ответ:

3

Объяснение:

$\frac{3+3cos50°}{1-cos130°}\\\frac{4.92836}{1.64279} =2.99999=3$

Answer 3

To solve the expression, we'll first need to convert the angles to radians because the trigonometric functions in most mathematical systems, including GPT-3.5, use radians for calculations.

1 degree = π/180 radians

So, 50° in radians = (50° * π) / 180 ≈ 0.8727 radians and 130° in radians = (130° * π) / 180 ≈ 2.2689 radians

Now, we can substitute these values into the expression and calculate it:

3 + 3 * cos(0.8727) / (1 - cos(2.2689))

Now, let's calculate the individual parts:

cos(0.8727) ≈ 0.6375 cos(2.2689) ≈ -0.7320

Now, substitute these values back into the expression:

3 + 3 * 0.6375 / (1 - (-0.7320))

Now, continue with the calculations:

3 + 3 * 0.6375 / (1 + 0.7320)

3 + 3 * 0.6375 / 1.7320

3 + 1.9125 / 1.7320

Now, divide 1.9125 by 1.7320:

3 + 1.1044 ≈ 4.1044

So, the value of the expression 3 + 3cos(50°) / (1 - cos(130°)) is approximately 4.1044.