20i(root)2. Would totally explain, but I’m not sure.
[box] equals 1/2 (i think; check by dividing 0.8 by 0.4 on calculator, or 4/5 divided by 2/5 on fraction calculator... kind of obvious)
Answer:
under what topic is this?
Answer:
7xy
Step-by-step explanation:
multiply the outside of the brackets by the inside so it is 7xy
the agrument of any complex number is defined as its angle.
if a complex number be Z=a+ib then the agrument of Z is given by,
Agr|Z|=A
where, tanA=b/a i.e. A=tan^-1(b/a)
by the question,
a=-4 and b=4
so A= tan^-1(4/-4)= tan^-1(-1)=135°
therefore the agrument of -4+4i is 135°