Angle A = arctan(12/5) = 67.4 degrees
Angle A = arccos(5/13) = 67.4 degrees
yes the answer was the same
I can see that 2 is a root but not 1? So I tried -1 by substitution and that works.
So to work out the 3rd root we just use the sum and product of roots theorem.
We have the sum of the roots = 11/7 and from there the third root is 4/7
If z = a-bi, the complex conjugate of z is a + bi.
So the imaginary part is "b"
"b" is opposite of -b, so correct answer is c)
Answer:
No
Step-by-step explanation:
An equation doesn't consists of an equal sign, and expression what contains it
Answer:
x + 4 = 10
Step-by-step explanation:
a number: x
a number increased by 4: x + 4
a number increased by 4 is 10: x + 4 = 10
Since 4 + x and x + 4 are the same, you are correct.
