Question

if x increases from 0 to pie by 2,then value of cos x is ....?​

Answer 1

Answer:

decrease from 1 to 0

it is decreasing function in this interval

Answer 2

calculation of cos value

Step-by-step explanation:

Change in value of cosine is depend upon the interval:

- from 0 to $pi$ value ( 0 to 180^o)- the value of cosine change from 1 to -1 therefore it show decreasing value

- from $\pi \  to\  2\pi$ ( 180^o to 360^o) the value of cosine change from -1 to 1 therefore it show increasing value.

In the given question value of x increase from 0 to pi/2, therefore cosine value is decreases as it is lie between $0 to pi$