Question

Cos 33 cos27 - sin 33 sin 27

Answer 1

Ответ:

Це косінус суми

Объяснение:

cos(33°+27°)=cos60°=(корінь з 3)/2

Answer 2

Получается: -0.95241298041

Answer 3

To simplify the expression cos(33)cos(27) - sin(33)sin(27), we can use the trigonometric identity for the cosine of the difference of two angles:

cos(a - b) = cos(a)cos(b) + sin(a)sin(b)

Applying this identity, we have:

cos(33)cos(27) - sin(33)sin(27) = cos(33 - 27)

Now we can simplify further:

cos(33 - 27) = cos(6)

The simplified expression is cos(6).