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

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

Baholash

$$-287,3331891577919424$$

Yechim qadamlari

Evaluate trigonometric functions in the problem

$$13 \cdot 0,9743700647852352 - 2 \cdot {(13)} ^ {2} + 3 \cdot 13 - 1$$

12,6668108422080576 hosil qilish uchun 13 va 0,9743700647852352 ni ko'paytirish.

$$12,6668108422080576-2\times 13^{2}+3\times 13-1$$

2 daraja ko‘rsatkichini 13 ga hisoblang va 169 ni qiymatni oling.

$$12,6668108422080576-2\times 169+3\times 13-1$$

338 hosil qilish uchun 2 va 169 ni ko'paytirish.

$$12,6668108422080576-338+3\times 13-1$$

-325,3331891577919424 olish uchun 12,6668108422080576 dan 338 ni ayirish.

$$-325,3331891577919424+3\times 13-1$$

39 hosil qilish uchun 3 va 13 ni ko'paytirish.

$$-325,3331891577919424+39-1$$

-286,3331891577919424 olish uchun -325,3331891577919424 va 39'ni qo'shing.

$$-286,3331891577919424-1$$

-287,3331891577919424 olish uchun -286,3331891577919424 dan 1 ni ayirish.

$$-287,3331891577919424$$

Omil

$$-287,3331891577919424$$