Question

The value of sgn (x^2+ 10), XER is​

Answer 1

Answer:

Step-by-step explanation:

hx=  

lna

ln(f(x)g(x))

​  

=  

lna

ln{a  

∣x∣

sgnx}+{a  

∣x∣

sgnx}

​  

 

={a  

∣x∣

sgnx}+[a  

∣x∣

sgnx]=a  

∣x∣

sgn

=  

⎩

⎪

⎪

⎪

⎨

⎪

⎪

⎪

⎧

​  

 

axx>0

0x=0

−ax  

−x

x<0

​  

 

⇒h(x) is odd function