The geometric series ' (for |x| < 1) is particularly useful, as its sum, 1- x can be related to n=0 many other functions. Using this, find a power series (centred at 0) representation of arctan(x), and determine the x-values for which this is valid. Hint: integrating or differentiating may be required.

only do B please

19. To rent a car from The Car Rental Place Juan must pay $20 plus an additional $1.50 per mile that he drives. If Juan has a total of $350 to spend on renting a car, how many miles can he afford to drive it? Equation:

A student solved the following equation algebraically and identified x = -1 and x = -6 as solutions. Use the space below to classify each solution as correct or extraneous. x+4= Va + 10 Correct solution(s), x = Extraneous solution(s), x =

3 Kindly provide complete and manual solution to verify my answer, Thank you!

Show the complete solution.

2. Solve the following equation and identify all correct solutions: 7x 13z+6 3 3 no solution 06 14 -7 13 New version available! (3.0.250)

Ma3. Please give only typed answer.   Solve by the elimination method      8x - y = 9      x + 4y =30