Question

problem inside! :)

Please explain! thanks!! :D

Answer 1

not quite sure how to start this one...

is it finding the derivative again? :/

Answer 2

yes, find the derivative and set it equal to 0 to get the critical points

Answer 3

would the derivative be this? :/\[-\frac{ 7(t^{2}-1) }{ (t^{2}+1)^{2} }\]

Answer 4

mhm.. did u use quotient rule ?

Answer 5

yes:)

u'v - uv'
-------
v^2

right?

Answer 6

looks very good !
set it equal to 0 and solve \(\large t\)

Answer 7

okay yay!! Thanks!! :D