(a) Find the equation of the tangent line to the curve y = x2 at x = 1. (b) The line in part (a) is also tangent to a circle with center (18, 0) at x = 4. Find the equation of this circle Recall that equations of circles have the form (x-a)² + (y-b)² = ².

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A: topic- triangle ,inverse trigonometric ratios and Pythagoras theorem

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A: answer is in next step. please give a like !!

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