7x-2=61
7x= 61+2
7x=63
7/7=63/7
x=9
Given : (8 + i)(2 + 7i)
⇒ (8 × 2) + (8 × 7i) + (i × 2) + (i × 7i)
⇒ 16 + 56i + 2i + 7i²
We know that i² = -1
⇒ 16 + 58i + 7(-1)
⇒ 16 + 58i - 7
⇒ 9 + 58i
Complex number will have :
- A real part
- an imaginary part
The conjugate of a complex number is simply the complex number with the imaginary part of the opposite sign
One of the usefulness of the conjugate is when you have a complex number in the denominator and you are trying to get rid of it
hope this helps
Answer:
3x² + 2x + 18
Step-by-step explanation:
24x² + 16x + 144 .......simplify by 4
6x² + 4x + 36
3x² + 2x + 18
Answer:
The x-intercept of the straight line is at (2,0) and the y-intercept is at (0,2).
Join those two points with a straight line and get the graph.
Step-by-step explanation:
The intercept form of a straight line equation is
, where the x-intercept of the line is at (a,0) and the y-intercept will be at (0,b).
So, we have to arrange the equation of a straight line in the intercept form and then we can easily find the x-intercept and y-intercept of the line.
Given equation is x + y = 2
⇒
Therefore, the x-intercept of the straight line is at (2,0) and the y-intercept is at (0,2).
Now, locate the two points as obtained on the graph and join them with a straight line and you will get the graph of the line. (Answer)