Question

the value of cos 41 pi by 4​

Answer 1

Step-by-step explanation:

$= cos( \frac{41\pi}{4} ) \\ = cos(5 \times 2\pi + \frac{\pi}{4} ) \\ = cos \frac{\pi}{4} \\ = \frac{1}{ \sqrt{2} } \\ \\ hope \: it \: will \: help \: you.$