Question: dw For the functions w = -7x-9y, x = cost, and y = sint, express as a function of t, both by using the

dw For the functions w = -7x-9y, x = cost, and y

dw For the functions w = -7x-9y, x = cost, and y = sint, express as a function of t, both by using the chain rule dt dw and by expressing w in terms of t and differentiating directly with respect to t. Then evaluate att= dt 3 dw Express as a function of t. dt dw dt

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