01. Which of the following linear differential equations has 3 et cos(2 t) and et as solutions? A. y + 3y" +7y' +5y=0 C. y - y" + 3y + 5 = 0 до утная VIVU E. y" +7y" +19 y' +13 y=0AO B. D. ""-5y" +7y' + 13 y=0 ""y"+3y + 5y=0

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A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

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Q: What is most useful about mathematics for humankind?

A: The reasons for most useful about mathematics for humankind are given below.

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Q: SIA SIA SIA # 1 2x - Ty 5x - 10y + 4:

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