(68^2+68^2)-(2*68*68)cos(72) eching

$$( { 68 }^{ 2 } + { 68 }^{ 2 } )-(2 \times 68 \times 68) \cos ( 72 )$$

Baholash

$$6390,2108360204859824$$

Yechim qadamlari

Evaluate trigonometric functions in the problem

$${({(68)} ^ {2} + {(68)} ^ {2})} - {(2 \cdot 68 \cdot 68)} 0,30901699437494745$$

2 daraja ko‘rsatkichini 68 ga hisoblang va 4624 ni qiymatni oling.

$$4624+68^{2}-2\times 68\times 68\times 0,30901699437494745$$

2 daraja ko‘rsatkichini 68 ga hisoblang va 4624 ni qiymatni oling.

$$4624+4624-2\times 68\times 68\times 0,30901699437494745$$

9248 olish uchun 4624 va 4624'ni qo'shing.

$$9248-2\times 68\times 68\times 0,30901699437494745$$

136 hosil qilish uchun 2 va 68 ni ko'paytirish.

$$9248-136\times 68\times 0,30901699437494745$$

9248 hosil qilish uchun 136 va 68 ni ko'paytirish.

$$9248-9248\times 0,30901699437494745$$

2857,7891639795140176 hosil qilish uchun 9248 va 0,30901699437494745 ni ko'paytirish.

$$9248-2857,7891639795140176$$

6390,2108360204859824 olish uchun 9248 dan 2857,7891639795140176 ni ayirish.

$$6390,2108360204859824$$

Omil

$$\frac{13819660112501051 \cdot 17 ^ {2}}{2 ^ {12} \cdot 5 ^ {16}} = 6390\frac{131772512803840}{625000000000000} = 6390,210836020487$$