In the figure, YX−→− is a tangent to circle O at point X. mXB =52∘ mXA =104∘ What is the measure of ∠XYA ? AC←→ is tangent to the circle with center at B. The measure of ∠ACB is 24°.

Mar 10, 2017 · 66^@ Given that AC is tangent to the circle and B is the center of the circle, => angleCAB=90^@ Given angleACB=24^@, =>angleABC=180-angleCAB-angleACB =180-90-24=66^@

Oct 31, 2017 · At this point this is a tangent to the circle. As we move it further, parallely, it cuts the circle at two points and as we move further, the points move further apart. However, as the line passes through the center of the circle and these two points (marked as #R_d# and #T_d#), become the ends of the diameter.

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Derivative is looking for instant variation of a function. and means the slope of a tangent line of the graph of the function in every point. Integral is looking for the area under a graph. Barrow's rule proves that this pair of problems are inverse one of each other