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Calculus, Early Transcendentals
- Is there a number x such that ln x=2 ? If so, whatis that number? Verify the result.arrow_forwardSolve for x: z=x.arrow_forwardThis exercise shows another way to derive the formula for the derivative of the natural logarithm function using the definition of the derivative. a. Using the definition of the derivative, show that d(lnx)dx=limh0ln(1+hx)1h. b. Eliminate h from the result in part a using the substitution h=x/m to show that d(lnx)dx=limmln[(1+1m)m]1/x c. What property should the function g have that would yield limmg(h(m))=g(limmh(m))? Assuming that the natural logarithm has this property, and using the result about (1+1/m)m from Section 2.1, show that d(lnx)dx=lne1/x=1x.arrow_forward
- Determine whether each of the following statements is true or false, and explain why. The derivative of lnkx is the same as the derivative of lnx.arrow_forwardThe formula for the amount A in an investmentaccount with a nominal interest rate r at any timet is given by A(t)=a(e)rt, where a is the amount ofprincipal initially deposited into an account thatcompounds continuously. Prove that the percentageof interest earned to principal at any time t can becalculated with the formula I(t)=ert1.arrow_forward
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