need to know how to derive the derivation of cos^-1(z)

Also, want to know where the formula is valid. see attachment for other details needed

ratios fractions

1. Simplify the following expressions by combining as many terms as possible. (a) 3xy + 5xy ETC...

VARIABLES EXPONETS RATIOS

Polynomials and Factoring

equations

Identify the units on x in each of the following equations. (both y and z are measured in feet) ETC..

WORD PROBLEMS

Express the following numbers using scientific notation. (a) 35,000,000,000 ETC....

Polynomials and Factoring

1. Combine like terms in each of the following expressions. (a) 8x^2 + 6x^3 + 2x + 5x ETC...

Complex Analysis Problem #1

Hi, I am having trouble with some complex analysis type problems. Please show as much work as you can, and don't use a calculator or computer to solve any parts of the problems. Also, my textbook used in the course is: "Fundamentals of Complex Analysis with Applications to Engineering, Science, and Mathematics" 3rd Edit ...continues

Complex Analysis Problem #3 (real and imaginary parts of analytic function)

Hi, I am having trouble with some complex analysis type problems. Please view the attached PDF. Please only sign out this posting if you are 100% confident in your work and understanding of the problem. Please show as much work as you can, and don't use a calculator or computer to solve any parts of the problems. Als ...continues

Complex Analysis Problem #4 (analytic and harmonic functions)

Hi, I am having trouble with some complex analysis type problems. Please view the attached PDF. Please only sign out this posting if you are 100% confident in your work and understanding of the problem. Please show as much work as you can, and don't use a calculator or computer to solve any parts of the problems. Als ...continues