n Problems 1–18, solve each differential equation by variation of parameters. 2. y" + y = tan x 4. y" + y = sec 0 tan 0 1. y" + y = sec x 3. у' +у3 sinx 5. y" + y = cos?x 7. у' — у %3 сosh x 6. y" + y = sec?x 8. y" – y = sinh 2x 9x 9. y" – 9y = 10. 4y" – y = ev2 + 3 3x

Q: a) How many students are taking Art?

A: the number of students taking Art if given by 6+10=16

Q: What is the Probability that a student is not taking either class?

A: From the given Venn diagram, it is observed that the number of students who are taking art only is…

Q: How large should n be to guarantee that the Trapezoidal Rule approximation to 8 n = 4 (-x¹ + 22x³ -…

A: (a)How large should n be to guarantee that the Trapezoidal Rule approximation  to is accurate to…

Q: 3 3 x-5 1 322

A:

Q: What is the probability of drawing a face card (Jack, Queen, or King) or a diamond from a standard…

A:

Q: 7 11

A:

Q: 1b+1b

A: Applying  addition operation since terms with same variable  binomial addition

Q: 3 + 4 = jbygy

A: 3+4=7

Q: (-3)² ÷ 3 • (5 - 10 + -8)

A:

Q: Identify the coordinates of the point in polar form based upon the given conditions. Use pi for T. r…

A: We will evaluate the required value.

Q: limx→- f(x) limo+ f(x) limx→ = = =

A:

Q: 1. For what values of a does the function f have a local (relative) maximum on (0,8)? Answer…

A: 1. For x= 3, the function  f(x) has a local maximum in the interval (0,8) 2. For x=2  , the function…

Q: 11 35

A:

Q: limx→2 f(x) = lim, ¹x→−1+ f(x) =

A: Given graph of the function fx is   1. Find :  limx→2 fx. 2. Find :limx→-1+ fx.