Posted by rudy on Thursday, January 24, 2008 at 4:10am.
i am having trouble iwth the following math problem:
lim
x>oo x/squre root 4+xsquare
I am not sure if i multiple the denominator with the numerator?

math  drwls, Thursday, January 24, 2008 at 5:45am
The answer depends upon whether the x^2 is in the denominator, and whether you mean sqrt 4 + x^2 or sqrt (4 + x^2). You need to use parentheses to clarify the meaning.
If you mean x/[sqrt (4 + x^2)]
Then limit as x> infinity = 1, because the 4 becomes negligible compared to x^2
If x^2 is a separate term, then the limit is infinity
Answer This Question
Related Questions
 Calculus/College Algebra  I'm so lost. We're working on limits for this ...
 Maths  Write the following expression into its simplest form? (1/x11/xsquare...
 Math help plz ASAP.  Rationalize each denominator. 6 + square root of 2 ...
 math  the limit of cuberoot((3x^3+5x+2)/(x^21)) as x approaches 3 is the ...
 algebra  I am trying to rationalize a denominator and it is a squre root, like ...
 calc  need to find: lim as x > 0 of 4(e^2x  1) / (e^x 1) Try splitting ...
 math  the sum of numerator and denominator is 3 less than twice the denominator...
 math  im having trouble with radicals, we learned them today but our teacher ...
 Algebra  Solve Rational Inequalities x^2x2/x^2+5x+6<0 I cant figure this ...
 Math  Help me!;/ 1) my numerator is 6 less than my denominator. I am equivalent...
More Related Questions