Question: (a) Express dw/dt as a function of t, both by using the Chain Rule and by expressing w in terms of t and differentiating directly

(a) Express dw/dt as a function of t, both by using the Chain Rule and by expressing w in terms of t and differentiating directly with respect to t. Then 


(b) Evaluate dw/dt at the given value of t.W || XIN y IN x = cos t, cos t, y

W || XIN y IN x = cos t, cos t, y y = sin t, z = 1/t; t = 3

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