An arc spans a central angle that is \dfrac{3\pi}{5}
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Answer:
Since,
1)
Differentiating with respect to x,
2)
Differentiating w. r. t x,
3)
Differentiating w. r. t. x,
4)
Differentiating w. r. t. t,
5)
Differentiating w. r. t. p,
6)
Differentiating w. r. t. t,
7)
Differentiating w. r. t. y,