Answer:
modulus of complex number is 
Step-by-step explanation:
z=x+iy is a complex numbers
the given complex number is 5+2i
the value of x is 5 and y is 2
the modulus of complex number formula is

modulus of complex number is 
Base on the image that you attached that is composed of a diagram that explains and ask to evaluate the indefinite integral of ArcTan(4x)dx, I conclude and formulate some equation that would become a solution of this problem and the outcome to that is 4ln(u)+c, I hope you are satisfied with my answer.
Answer:
6ft 2ins
Step-by-step explanation:
ins:9+5=14
ft:2+3=5
now you can add another foot because there is 12 ins in 1 foot making the answer 6 feet and 2 inches
Answer:
Subtract: 5 - 9i = 5-9i
Add: the result of step No. 1 + (-4) = (5-9i) + (-4) = (5-4) + (-9i) = 1-9i
Add: the result of step No. 2 + 7i = (1-9i) + 7i = 1 + (-9+7)i = 1-2i
Subtract: 1 - 2i = 1-2i
Subtract: the result of step No. 1 - 4 = (1-2i) - 4 = (1-4) + (-2i) = -3-2i
Add: the result of step No. 2 + 7i = (-3-2i) + 7i = -3 + (-2+7)i = -3+5i
Step-by-step explanation:
Correct me if I'm wrong pls and ty :).
Hope this helps.