If f(x)=/cos x/,then f(3x/4) is

Class 12th Mathematics, Question Paper 2023:If f(x)=/cos x/,then f(3x/4) is

These are the options for the Question: If f(x)=/cos x/,then f(3x/4) is

(a) 1
(b) -1
(c) -1/[2
(d) 1/[2

 

The correct answer is – (d) 1/[2