SOLUTION: ok please help Find the domain of each function a) h(x)= x + 3/x-5 b) p(x)= sq rt x^2+7

Algebra ->  Functions -> SOLUTION: ok please help Find the domain of each function a) h(x)= x + 3/x-5 b) p(x)= sq rt x^2+7       Log On


   

Question 45948: ok please help
Find the domain of each function
a) h(x)= x + 3/x-5
b) p(x)= sq rt x^2+7
Answer by venugopalramana(3286) About Me  (Show Source):
You can put this solution on YOUR website!
Find the domain of each function
a) h(x)= x + 3/x-5
AT X=5 ,X-5=0 AND DIVISION BY 0 IS NOT MEANING FULL.SO DOMAIN IS ALL REAL VALUES ECEPT X=5
b) p(x)= sq rt x^2+7
X^2 +7 IS ALWAYS POSITIVE AND ITS SQUARE ROOT EXISTS ALWAYS.
HENCE DOMAIN IS ALL REAL VALUES OF X