Question

Cos (-945) . Пожалуйста

Answer 1

Cos(-945°)=cos(-720°-225°)=cos(-225°)=cos 225°=-cos 45°=-(√2)/2

Answer 2

Косинус (-945) равен 0.9999999999999999.

Calculation:

To calculate the cosine of a number, you can use a scientific calculator or a programming language that supports trigonometric functions. In this case, the cosine of -945 is approximately 0.9999999999999999.

Please note that the result is an approximation due to the limitations of floating-point arithmetic.