Answer: Option 1 is correct.
Explanation:
This graph shows that it cuts x-axis at [tex]\frac{\pi} {2}[/tex]=0 and at [tex]\frac{3\pi} {2}[/tex]=0 which is satisfying the property of cosx
Extrema of the graph at x=0, [tex]\frac{\pi} {2}[/tex],[tex]2\pi[/tex]
Properties of the given graph:
maxima at x=0 and [tex]2\pi[/tex]
minima at x=[tex]\pi}[/tex]
x-intercept at x = [tex]\frac{\pi} {2}[/tex], [tex]\frac{3\pi} {2}[/tex]
period = [tex]2\pi[/tex]
Range [-1,1]
Domain is all real numbers.
These all properties follows by cos x function.
So, the given graph would be of cos x
Thus, Option 1 is correct.
