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H(s) = (s^4-5)^2 derivative

User Hytool
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1 Answer

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If h(s) = (s ⁴ - 5)², then by the chain and power rule,

h'(s) = 2 (s ⁴ - 5) • (s ⁴ - 5)'

By the power rule,

(s ⁴ - 5)' = 4s ³

so that

h'(s) = 8s ³ (s ⁴ - 5)

… = 8s ⁷ - 40s ³

User Rohan Pawar
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