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Q1 If r(t) = (2t2 - 5)i + (t - 2)j + (4t + 10)k, find...

Q1 If r(t) = (2t2 - 5)i + (t - 2)j + (4t + 10)k, find the curvature k(t) at t = 1.

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Q2

Find the curvature k ( t ) for r ( t ) = 8 sin ⁡ t i + 8 cos ⁡ t j

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−sin2⁡t+cos2⁡t

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