left(cos(18)right)^2-left(sin(18)right)^2 eching

$${ \left( \cos ( 18 ) \right) }^{ 2 } - { \left( \sin ( 18 ) \right) }^{ 2 }$$

Baholash

$$0,80901699437494730182471083579549$$

Yechim qadamlari

Evaluate trigonometric functions in the problem

$$0,9510565162951535 ^ {2} - 0,3090169943749474 ^ {2}$$

2 daraja ko‘rsatkichini 0,9510565162951535 ga hisoblang va 0,90450849718747357487752758856225 ni qiymatni oling.

$$0,90450849718747357487752758856225-0,3090169943749474^{2}$$

2 daraja ko‘rsatkichini 0,3090169943749474 ga hisoblang va 0,09549150281252627305281675276676 ni qiymatni oling.

$$0,90450849718747357487752758856225-0,09549150281252627305281675276676$$

0,80901699437494730182471083579549 olish uchun 0,90450849718747357487752758856225 dan 0,09549150281252627305281675276676 ni ayirish.

$$0,80901699437494730182471083579549$$

Omil

$$\frac{3 \cdot 19 \cdot 29 \cdot 1429 \cdot 58099 \cdot 89491 \cdot 77332291 \cdot 85181183}{2 ^ {32} \cdot 5 ^ {32}} = 0,8090169943749472$$