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Find the exact length of the curve.
x = 1 + 9t^2, y = 7 + 6t^3, 0 ≤ t ≤ 2
Find the exact length of the curve.
x = 1 + 9^t2, y = 7 + 6^t3, 0 ≤ t ≤ 2
2 answers
s = ∫[0,2] √((18t)^2 + (18t^2)^2) dt
= ∫[0,2] 18t√(1+t^2) dt = 6(5√5 - 1)
= ∫[0,2] 18t√(1+t^2) dt = 6(5√5 - 1)
1 answer