Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) If ax + by = 1 is tangent to the hyperbola `x^2/a^2- y^2/b^2`=1 then `a^2 – b^2` equals to- - Sarthaks eConnect

b^2`=1 then `a^2 – b^2` equals to-

`1/(a^2e^2)`

`a^2e^2`

`b^2e^2`

None of these