Question

If f is a signum function then what is f(100)

Answer 1

Given info : f is a signum function.

To find : The value of f(100)

solution : we know, f(x) = |x|/x is known as signum function.

it is defined as

f(x) = 1 for x > 0

f(x) = 0 for x = 0

f(x) = -1 for x < 0

here x = 100 > 0

so, f(100) = 1

Therefore the value of f(100) = 1 if f is a signum function.

also read similar questions : show that signum function f : R→R, given by:

f(x) = 1, if x>0

0,if x=0

-1,if x<0

is neither one-one nor onto.

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0 , if x = 0

-1 if x < 0 }

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Answer 2

Answer:-

Given info :

f is a signum function.

To find :

The value of f(100)

solution :

we know, f(x) = |x|/x is known as signum function.

it is defined as

f(x) = 1 for x > 0

f(x) = 0 for x = 0

f(x) = -1 for x < 0

here x = 100 > 0

so,

f(100) = 1

Therefore the value of f(100) = 1 if f is a signum function.

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