Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) The slope of the tangent to the curve `y =sqrt(4-x^2)` at the point where the ordinate and the abscissa are equal is - Sarthaks eConnect

The slope of the tangent to the curve `y =sqrt(4-x^2)` at the point where the ordinate and the abscissa are equal is

-1

none of these