Question

find x if root2cosx = 1 ,0≤x≤90 degree​

Answer 1

Answer:

X =45

Step-by-step explanation:

Root 2 cosx =1

Cosx = 1/root2 [cos 45 = 1/root 2]

Cosx = cos45 [ cos and cos on both sides gets canceled]

Therefore x =45

Hope this helps u