सिद्ध कीजिए कि f (x) = sin x व्दारा परिभाषित फलन f : `R to R ` न एकैकी हैं और न ही आच्छादक हैं ।

f : R to R : f (x) = cos x is

f : R to R : f (x) =x^(2) is

If f : R to R , then f (x) =|x| is

If R is a set of real numbers and f : R to R is given by the relation f (x) = sin x, x in R and mapping g: R to R by the relation g(x)= x^2 , X in R , then prove that f o g ne g o f.

If f : R rarr R , f(x) = sin^(2) x + cos^(2) x , then f is

If f : R rarr R , f(x) = sin^(2) x + cos^(2) x , then f is