Question

value of cos (-1710°)​

Answer 1

Answer:

the value of cos -1710°=0

Answer 2

Step-by-step explanation:

We have, 1710° = (1710/180)•π radian

$\cos( - \frac{1710}{180} \pi)$

$= - \cos( \frac{19\pi}{2} )$

$= - \cos(10\pi - \frac{\pi}{2} )$

$= - ( - \cos( \frac{\pi}{2} ) )$

$= 0$