Math Is Fun Forum

Angel Rox

Member

Registered: 2008-11-10

Posts: 15

Need help Urgently!!!!!

Q1- The distance traveled by an object at time t ≥ 0 is s = f(t) = t^2 where s is in meter (m) and t in seconds (sec). Find the instantaneous velocity of the object at t = 2sec

Q2- Find the natural domain of the given function

h(x) = 1/1-sinx

Q3- What are the points of discontinuity for the function f(x)=x+5/x^2-1 ?

Identity

Member

Registered: 2007-04-18

Posts: 934

Re: Need help Urgently!!!!!

Q1

where v is in (m/s) and t is in seconds.

∴ The instantaneous velocity at 2 seconds is 4 m/s

Q2.

To prevent division by zero, the denominator must not be zero.

So solve:

Hence the domain is

Q3.

Since x = -1, 1 would cause division by zero, there are discontinuities at x = -1, 1. (These are vertical asymptotes)

Last edited by Identity (2008-12-11 17:18:09)