The square describes his world as a plane populated by lines, circles, squares ... That is, for the equations that describe superstring theory to begin to work out—for the equations to connect ...

The tangent is perpendicular to the radius which joins the centre of the circle to the point P. As the tangent is a straight line, the equation of the tangent will be of the form \(y = mx + c\).

Soddy's equations for the circle and the sphere to space of n-dimensions, and more recently Mr. C. C. Mason has submitted a verse on similar lines. Prof. Soddy informs us that he received a verse ...

As the tangent is a straight line, the equation of the tangent ... the value of \(c\) in the equation. Find the equation of the tangent to the circle \(x^2 + y^2 = 25 \) at the point (3, -4).