Solve 13cos(13)-2*13^2+3*13-1

$$13 \cos ( 13 ) -2 \times { 13 }^{ 2 } +3 \times 13-1$$

Evaluate

$$-287.3331891577919424$$

Solution Steps

Evaluate trigonometric functions in the problem

$$13 \cdot 0.9743700647852352 - 2 \cdot {(13)} ^ {2} + 3 \cdot 13 - 1$$

Multiply 13 and 0.9743700647852352 to get 12.6668108422080576.

$$12.6668108422080576-2\times 13^{2}+3\times 13-1$$

Calculate 13 to the power of 2 and get 169.

$$12.6668108422080576-2\times 169+3\times 13-1$$

Multiply 2 and 169 to get 338.

$$12.6668108422080576-338+3\times 13-1$$

Subtract 338 from 12.6668108422080576 to get -325.3331891577919424.

$$-325.3331891577919424+3\times 13-1$$

Multiply 3 and 13 to get 39.

$$-325.3331891577919424+39-1$$

Add -325.3331891577919424 and 39 to get -286.3331891577919424.

$$-286.3331891577919424-1$$

Subtract 1 from -286.3331891577919424 to get -287.3331891577919424.

$$-287.3331891577919424$$

Factor

$$-287.3331891577919424$$