Question: dw 9. For w = + , x = cos't, y = sin't, z = -, find t two ways: dt a) Using the chain

dw 9. For w = + , x = cos't, y = sin't, z = -, find t two ways: dt a) Using the chain rule. b) Directly, expressing w in terms of t and differentiating directly with respect to t. Reference: The problems are based on the second weeks' lectures and Thomas' Calculus. Early Transcendentals, 14th ed., sections 14.2-14.4

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