Question

Let f : [R → [R defined by f(x) = |x|, then f(1)-f(-1) is equal to​

Answer 1

Answer:

f:[1,1]

Step-by-step explanation:

$f(x) = |x|$

$f(1) = |1| = 1$

$f( - 1) = | - 1| = 1$

therefore,R is 1,1

that implies f:[1,1]

Answer 2

Answer:

0

Step-by-step explanation:

f(x) =|x|

so, we take x is 1 in case of f(x)

f(1) =|1|=1 ,

in this we take x equal-1

f(-1) = |-1| =1 because in modulus the negative sing Change into positive

so ,

we put the value in

f(1) -f(-1) = 1 -1 =0 ..

I hope your all doubts are clear about this question....