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(10 points) Find the exact value of: cos(tan-1(125)+cos-1(-45))

(2 points each)  Find all solutions for the equations below (write the general solutions for each).  No calculator! a) sec(x)=2 b) cot(x)=33

Evaluate  Leave your answer in polar form.  (use Demoivre’s theorem)If you see an error in the formatting, you are evaluating the 8th power of the same complex number from the previous problem.

  Solve the following equation for ALL SOLUTIONS:   (10 points) tan(x) = 2 sin(x)  

(5 pts) Write the polar equation of the graph below:    

Write the Matrix Equation (AX=B) for the following system of equations.  Then solve using inverse matrices.  You must show the inverse matrix that your calculator gives you. This question should look familiar. I apologize for the formatting issue with the brackets.   There are 4 equations with 4 variables below.  2x+ 9y+ 10z+7w =11   x   -y +   z+  w = -33 x + 2y-11z+2w = 1   x + 3y + 4z+4w = 0

Find the value of $1,000 invested for 45 years in an account earning 5.5% interest compounded monthly.      

________ are big-picture, long term, and existential, and they can’t be too general.

If a tree is 89.5 cm tall, what is the tree’s height expressed in yards? (1 yd = 0.914 m)  Provide your answer in correct sig. figs)

What is the mass in kilograms of an individual who weighs 197 lb? (Given 1 lb = 455 g) Provide your answer in correct sig. figs)