APPLIED CALCULUS (WILEY PLUS)
6th Edition
ISBN: 9781119399322
Author: Hughes-Hallett
Publisher: WILEY
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Chapter B, Problem 1P
To determine
A department stores issues its own credit card, with an interest rate of 2% per month. Explain why this is not the same as an annual rate of 24%. What is the effective annual rate?
Expert Solution & Answer
Answer to Problem 1P
26.8%
Explanation of Solution
Given information:
A department stores issues its own credit card, with an interest rate of 2% per month.
Calculation:
Effective annual rate is given by
So,each compounding adds more than an one time compounding of 24%.
Thus, it is not the same as annual rate of 24%.
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What is the particular solution to the differential equation y′′ + y = 1/cos t ?
Which of the following is the general solution to y′′ + 4y = e^2t + 12 sin(2t) ?A. y(t) = c1 cos(2t) + c2 sin(2t) + 1/8 e^2t − 3t cos(2t)B. y(t) = c1e^2t + c2e^−2t + 1/4 te^2t − 3t cos(2t)C. y(t) = c1 + c2e^−4t + 1/12 te^2t − 3t cos(2t)D. y(t) = c1 cos(2t) + c2 sin(2t) + 1/8 e^2t + 3 sin(2t)E. None of the above.
Please include all steps! Thank you!
Show that i
cote +1 = cosec 20
tan 20+1 = sec² O
२
cos² + sin 20 = 1
using pythagon's theorem
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