t^2/�ã(t^2+1) - �ã(t^2+1)
-------------------------
t^2
Is the final answer -1/t^2 sqrt(t^2+1)
2 answers
The a is supposed to be a square root
you have
t^2/√(t^2+1) - √(t^2+1)
----------------------------
t^2
Combine the terms in the numerator and denominator
t^2 - (t^2+1)
---------------------
t^2 √(t^2+1)
-1/(t^2 √(t^2+1))
t^2/√(t^2+1) - √(t^2+1)
----------------------------
t^2
Combine the terms in the numerator and denominator
t^2 - (t^2+1)
---------------------
t^2 √(t^2+1)
-1/(t^2 √(t^2+1))