Find the unit tangent vector to the curve defined by 3πT 4 F(t) = (4 cos(t), 4 sin(t), 5 sin²(t)) at t = 3T 4

Q: 1. Find the inverse [2-2 2 b 1 2 2 7 9 2 3 -1 -4 -7 Sp 800 2010

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Q: (a) Prove that f(x) = x³ + x² + 2 has no roots in Q.

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