X^2 + x = 42
sum indicates addition
a number = x
it's square = x^2
Answer:
Step-by-step explanation:
It’s 88
Step-by-step explanation:
Any complex number is of the form:
where a is real part and B is imaginary part.
Therefore, in given complex number:
7 is real part.
is imaginary part.
Hence, first two options are correct.
Last two options are incorrect because of the following reasons:
is coefficient of
& not
Given number is a difference of a real number and imaginary number & not a sum of a real number and imaginary number.
Answer:
53
Step-by-step explanation:
Your two median numbers are 52 and 54 you add these and divide by two and get 53.
Hope this helps
Answer:
The general solution of the given differential equation

Step-by-step explanation:
Step(I):-
Given differential equation
y⁴+18y"+81y=0
⇒ (D⁴+18D²+81)y =0
The auxiliary equation


we will use formula ( a + b)² = a² + 2 a b + b²
⇒ ( m² + 9 ) ² = 0
⇒ ( m² + 9 ) ( m² + 9 ) = 0

m² + 9 = 0

The complex roots are 0± 3 i ,0 ± 3 i
<em>Step(ii)</em>:-
The complementary function

The general solution of the given differential equation

The general solution of the given differential equation