ដោះស្រាយ 2*cos(160)*cos(140)*cos(100)

$$2 \times \cos ( 160 ) \times \cos ( 140 ) \times \cos ( 100 )$$

វាយតម្លៃ

$$-0.249999999999999863182868139868405239662318136142$$

ជំហានចម្លើយ

Evaluate trigonometric functions in the problem

$$2 \cdot -0.9396926207859083 \cdot -0.7660444431189779 \cdot -0.1736481776669303$$

គុណ 2 និង -0.9396926207859083 ដើម្បីបាន -1.8793852415718166។

$$-1.8793852415718166\left(-0.7660444431189779\right)\left(-0.1736481776669303\right)$$

គុណ -1.8793852415718166 និង -0.7660444431189779 ដើម្បីបាន 1.43969262078590800117836123825314។

$$1.43969262078590800117836123825314\left(-0.1736481776669303\right)$$

គុណ 1.43969262078590800117836123825314 និង -0.1736481776669303 ដើម្បីបាន -0.249999999999999863182868139868405239662318136142។

$$-0.249999999999999863182868139868405239662318136142$$