# truly parametric

Calculus Level 1

if $$y= \cos{2t}$$ and $$x= \sin{t}$$.

Find the expression for $$\frac{dy}{dx}$$.

1) $$2\sin{t}$$

2) $$-4\sin{t}$$

3) $$-4\sin{2t}$$

4) $$-2\sin{2t}$$ type your answer as 1 or 2 or 3 or 4 in the answer box

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