ariannasofia1

62%

The answer given to this is 
10(cos 40°+i sin 40°)
Can you please explain , thank you 

I mean any other websites that work like this one & if so would you be so kind to share them with me ?
please & thank you .

Thank you so much !

Trina has $20.000 
james had $40.000
Marcus had $40.00

Does it equal 5 or 4 ?

I realize now that I wrote the question wrong  
cot^-1[tan(-45)]
And even though I made it negative the answer did not change !

I'm telling you this problem was already answered for me , I am expected to she the step by step process that leads the answer to be 135°
I was given a few steps which I do not understand ... But the answer of the problem in 135°

I have the answer for both of these problems
the first one:135°
the second one : -60°

Here is the work that is given to me which by the way I do not understand and maybe you will.
cot^-1[tan(45°)] = cot^-1(-1) from A S TC cot^-1(-1)=135°

Please hellp !!!!!

 first one 
9 
second one 
19
third one 
2

fourth one 
9 
this giving you a total of 39