Question

Cos89*cos44 + sin89*cos46/sin77*cos32-cos77*cos58

Answer 1

Ответ:0.45222400542

Пошаговое объяснение:

Answer 2

Let's break down the expression step by step:

1. cos(89) * cos(44): The cosine of 89 degrees is 0, and the cosine of 44 degrees is approximately 0.7193. Therefore, cos(89) * cos(44) = 0.

2. sin(89) * cos(46): The sine of 89 degrees is 1, and the cosine of 46 degrees is approximately 0.7314. Therefore, sin(89) * cos(46) = 1 * 0.7314 ≈ 0.7314.

3. sin(77) * cos(32): The sine of 77 degrees is approximately 0.9763, and the cosine of 32 degrees is approximately 0.8480. Therefore, sin(77) * cos(32) = 0.9763 * 0.8480 ≈ 0.8269.

4. cos(77) * cos(58): The cosine of 77 degrees is approximately 0.2079, and the cosine of 58 degrees is approximately 0.5580. Therefore, cos(77) * cos(58) = 0.2079 * 0.5580 ≈ 0.1159.

Now, let's substitute these values back into the original expression:

0 + 0.7314 / 0.8269 - 0.1159

Now, perform the division:

0.7314 / 0.8269 ≈ 0.8844

Finally, calculate the result:

0.8844 - 0.1159 ≈ 0.7685

So, the value of the expression is approximately 0.7685.