3 years ago

Make up a situation where a quantity is changing.'[

1 answer:

6 0

Answer:

there are two chickens and they lay 2 eggs a day wich hatch into new chickens therefore the quantity goes up everytime the eggs hatch

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igomit [66]

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Ad libitum [116K]

$\cos t (\sec t - \cos t) = \sin^2 t$

$\cos t (\dfrac{1}{\cos t} - \cos t) = \sin^2 t$

$\dfrac{\cos t}{\cos t} - \cos^2 t = \sin^2 t$

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Use the identity: $\sin^2 t + \cos^2 t = 1$ and solve for $\sin^2 t$ . You get: $\sin^2 t = 1 - \cos^2 t$

Do the substitution on the left side to get:

$\sin^2 t = \sin ^2 t$

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