Hey people !
As each day passes, math keeps getting harder and harder -_-
First question -
lim x ----> 0 (e^x-1)/x
2nd question -
If 2A plus B = Π/4 (thats pi btw)
Prove that, tan B = (1 - 2 tan A - tan ^2 A)
1 plus tan A - tan ^2 A
Hence show that tan Π/8 is a root of the equation x^2 plus 2x - 1 = 0 and that its value is √2 - 1
If the other root is tan θ , find θ in the (0,Π) range.
Go !! (Need these with steps if possible)..







