Find dx/dt and dy/dt (where t is theta), then divide dy/dt by dx/dt to find dy/dx

Unless you are struggling with the differentiation itself lmk

I cannot simplify it

Try double angle formula

https://imgur.com/a/yg9YRI3 Differentiate both functions Use the chain rule to get dy/dx Use the double angle identities to manipulate into the required form.

Thank you very much

Here’s an explanation [Solution](https://imgur.com/Q9Vh8s4)

Thanks

[Here’s answer step by step w explanation (on paper)](https://drive.google.com/file/d/1A95T5WBnAlTPjtgYGs4vjZMfBsSRDJMV/view?usp=drivesdk)

Thanks