Q. Find the derivative of the function.g(t)=(7t+1)61
Identify function: Identify the function to differentiate.We are given the function g(t)=(7t+1)61. We need to find its derivative with respect to t.
Apply chain rule: Apply the chain rule for differentiation.The chain rule states that the derivative of a composite function is the derivative of the outer function evaluated at the inner function times the derivative of the inner function. In this case, the outer function is f(u)=u−6 and the inner function is u(t)=7t+1.
Differentiate outer function: Differentiate the outer function with respect to the inner function.The derivative of f(u)=u−6 with respect to u is f′(u)=−6u−7.
Differentiate inner function: Differentiate the inner function with respect to t. The derivative of u(t)=7t+1 with respect to t is u′(t)=7.
Apply chain rule: Apply the chain rule by multiplying the derivatives from Step 3 and Step 4.The derivative of g(t) with respect to t is g′(t)=f′(u(t))⋅u′(t)=−6(7t+1)−7⋅7.
Simplify expression: Simplify the expression.g′(t)=−6×7×(7t+1)−7=−42×(7t+1)−7.
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