Question

what is the maximum value of cos
$\cos(?)$
​

Answer 1

Answer: 1

Step-by-step explanation:

Maximum value of cos(cos x) will be obtained when value of cos x is minimum as cosθ is a decreasing Function

So, minimum value of cos x =0 (at x=90° ,270° )

Now, cos(cos x)=cos 0=1

Therefore, Answer is 1

Maximum value of cos θ is 1 when θ = 0 ˚, 360˚. Minimum value of cos θ is –1 when θ = 180 ˚. So, the range of values of cos θ is – 1 ≤ cos θ ≤ 1.