Please help me :'( I have been stuck on this

Please Help Me I Have Been Stuck On This class=

Sagot :


This is really weird.

-- NONE of the situations matches the equation at the top. 

-- And the equation at the top isn't even really any big deal . . .
it's always true, no matter what  ' t '  is .  If you remove all of
the parentheses and simplify it, it says that  6 = 6.  Well duh !