8. 3. (1 – cos wt) where w is a positive constant

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A:

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A: Given r(t) To find N(t)------ unit tangent vector

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Q: Find =. Leave the answer in the form a + bi.

A: Formula : here

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A: There are multiple question , as per company policy kindly ask other question separately.

Q: 18.) Suppose x = R cos(0) sin($), y = R sin(0) sin($) and z = x² + y? + z? = R²Y R cos(). Verify the…

A: Given

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A:

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A: differentiate with respect to x

Q: 15. Find the following EXACT: (a) sin[cos'(2/3)] (b) sin[tan(-6)]

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A: