Assertion (A) : $\cos 1 < \cos 2$ 

Reason(R) : In $(0,\mathrm{\pi }), \mathrm{cosx}$ is decreasing function

 

A is false, R is true

A is true, R is true and R is correct explanation of A

A is true, R is false

A is true, R is true and R is not correct explanation of A