The tangent to the curve x = et cost, y = et sin t at t = π4 makes wi – InterviewSolution

1.	The tangent to the curve x = et cost, y = et sin t at t = π4 makes with x-axis an angle (a) 0 (b) π4 (c) π3 (d) π2
Answer» The tangent to the curve x = e^t cost, y = e^t sin t at t = $\frac{π}{4}$ makes with x-axis an angle (a) 0 (b) $\frac{π}{4} (c) \frac{π}{3} (d) \frac{π}{2}$

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