cos(25^circ)*cos(20^circ)-sin(25^circ)*sin(20^circ) ھەل قىلىش

$$\cos ( 25 ^ { \circ } ) \times \cos ( 20 ^ { \circ } ) - \sin ( 25 ^ { \circ } ) \times \sin ( 20 ^ { \circ } )$$

ھېسابلاش

$$0.707106781186547492085079020553632$$

يېشىش باسقۇچلىرى

Evaluate trigonometric functions in the problem

$$0.9063077870366499 \cdot 0.9396926207859084 - 0.42261826174069944 \cdot 0.3420201433256687$$

0.9063077870366499 گە 0.9396926207859084 نى كۆپەيتىپ 0.85165073963914648337125226426916 نى چىقىرىڭ.

$$0.85165073963914648337125226426916-0.42261826174069944\times 0.3420201433256687$$

0.42261826174069944 گە 0.3420201433256687 نى كۆپەيتىپ 0.144543958452598991286173243715528 نى چىقىرىڭ.

$$0.85165073963914648337125226426916-0.144543958452598991286173243715528$$

0.85165073963914648337125226426916 دىن 0.144543958452598991286173243715528 نى ئېلىپ 0.707106781186547492085079020553632 نى چىقىرىڭ.

$$0.707106781186547492085079020553632$$

كۆپەيتكۈچى

$$\frac{3 \cdot 10091 \cdot 169933 \cdot 4295382450610375017889}{2 ^ {28} \cdot 5 ^ {33}} = 0.7071067811865476$$