If the tangent line to y =f(x) at x =a is the same as the
tangent line to y =g(x) at x = b, find two equations that must
be satisfied by a and b.

Question

If the tangent line to y =f(x) at x =a is the same as the
tangent line to y =g(x) at x = b, find two equations that must
be satisfied by a and b.

nenadmatematika · Answer

I think that one is that $$f \prime(a)=g \prime(b)$$   what about the other one?

turingtest · Answer

if the two tangent lines must be identical we have that $$f(a)=g(b)$$because the lines must coincide

nenadmatematika · Answer

oh I've just remembered, thank you :D

turingtest · Answer

welcome!

anonymous · Answer

subject calculus: can i post my prof example? i confuse something

nenadmatematika · Answer

post it

anonymous · Answer

nenad wer u?

anonymous · Answer

my mother tells me if ever i graduate this final sem i will give u a present and sent it on your country.thank u ^^

nenadmatematika · Answer

hahaha....you don't have to :D

anonymous · Answer

dont worry is not now!on my graduation this semister! i really wanted give it to u! my mother will give me money on my graduation XDDD but right this month is a full of war on math!im focus!
math is only my minor subj is not related on my course but its irritate me because my prof is strict on grade.
and sorry for my bad english because im not amerikano =D

nenadmatematika · Answer

haha,are you Spanish?

anonymous · Answer

no no no im a mexican from viva mexico papa amerikano tot tot tot tot  the song XD brb nenad going to play tetris from fb.

nenadmatematika · Answer

ok, see ya hahaa!

anonymous · Answer

nenad can u check my question pls