The slope of the tangent at the point ( h , h ) of the circles x2+y2=a2 is

Question

The slope of the tangent at the point ( h , h ) of the circles x2+y2=a2 is (A) 0 (B) 1 (C) -1 (D) depends on h

Tardigrade Admin · Accepted Answer

The equation of tangent to the circle at the pont ( h , h ) is hx + hy = a 2 ∴ Slope =-( h / h )=-1

Q. The slope of the tangent at the point $(h, h)$ of the circles $x^{2} + y^{2} = a^{2}$ is