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y(1)=1x(t)=3y(t)=2ty(1)=1\quad x'(t)=3\quad y'(t)=2t\newlineWrite the equation of the line tangent to the curve given by \newlinex(t)=3t1x(t)=3t-1 and \newliney(t)=t2y(t)=t^{2} at the point where \newlinet=1t=1.

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Q. y(1)=1x(t)=3y(t)=2ty(1)=1\quad x'(t)=3\quad y'(t)=2t\newlineWrite the equation of the line tangent to the curve given by \newlinex(t)=3t1x(t)=3t-1 and \newliney(t)=t2y(t)=t^{2} at the point where \newlinet=1t=1.
  1. Find Slope of Tangent: To find the equation of the tangent line, we need to determine the slope of the tangent line at the point where t=1t=1. The slope of the tangent line is given by the derivative of yy with respect to xx, which can be found using the derivatives of yy with respect to tt and xx with respect to tt.
  2. Derivative of xx: First, we find the derivative of xx with respect to tt, denoted as x(t)x'(t). Given x(t)=3t1x(t)=3t-1, we differentiate with respect to tt to get x(t)=3x'(t)=3.
  3. Derivative of yy: Next, we find the derivative of yy with respect to tt, denoted as y(t)y'(t). Given y(t)=t2y(t)=t^2, we differentiate with respect to tt to get y(t)=2ty'(t)=2t.
  4. Evaluate Derivatives at t=1t=1: Now, we evaluate both derivatives at t=1t=1. For x(1)x'(1), we have x(1)=3x'(1)=3. For y(1)y'(1), we have y(1)=2×1=2y'(1)=2\times 1=2.
  5. Calculate Tangent Line Slope: The slope of the tangent line at t=1t=1 is the ratio of the derivatives, which is y(1)x(1)=23\frac{y'(1)}{x'(1)} = \frac{2}{3}.
  6. Find Coordinates at t=1t=1: We also need the coordinates of the point on the curve at t=1t=1. We substitute t=1t=1 into the original equations to find the coordinates. For x(1)x(1), we have x(1)=3×11=2x(1)=3\times 1-1=2. For y(1)y(1), we have y(1)=(1)2=1y(1)=(1)^2=1.
  7. Use Point-Slope Form: With the slope of the tangent line and the point of tangency, we can use the point-slope form of the equation of a line: yy1=m(xx1)y - y_1 = m(x - x_1), where mm is the slope and (x1,y1)(x_1, y_1) is the point of tangency.
  8. Substitute Slope and Point: Substituting the slope and the point into the point-slope form, we get y1=(23)(x2)y - 1 = \left(\frac{2}{3}\right)(x - 2).
  9. Convert to Slope-Intercept Form: To write the equation in slope-intercept form, we can distribute the slope and simplify: y1=(23)x(43)y - 1 = \left(\frac{2}{3}\right)x - \left(\frac{4}{3}\right).
  10. Solve for y: Finally, we add 11 to both sides to solve for yy: y=(23)x(43)+1y = \left(\frac{2}{3}\right)x - \left(\frac{4}{3}\right) + 1.
  11. Final Tangent Line Equation: Simplifying the equation, we combine like terms: y=23x43+33y = \frac{2}{3}x - \frac{4}{3} + \frac{3}{3}.
  12. Final Tangent Line Equation: Simplifying the equation, we combine like terms: y=23x43+33y = \frac{2}{3}x - \frac{4}{3} + \frac{3}{3}.The final equation of the tangent line is y=23x13y = \frac{2}{3}x - \frac{1}{3}.

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