Answer: can you elaborate please?
Step-by-step explanation:
An imaginary number is a complex number that can be written as a real number multiplied by the imaginary unit i, which is defined by it's property i² = −1. The square of an imaginary number bi is −b². For example, 5i is an imaginary number, and it's square is −25.
#1

- The limit tends to 0
- Hence c=0

- Here limit tends to 1
- Hence c=1

- Here x tends to infty.
- c=infty
For the fourth one limit also tends to zero
hmmmm i think there is another part of this
Answer:
135°
Step-by-step explanation:
That triangle in the corner is an right angle isosceles triangle as that line the midpoint of both sides :
the base angle of this triangle (x) will be :
180 = 90 + 2x
90 = 2x
x= 45
Angles on a straight line add up to 180. So to work out a :
180 = 45 + a
135 = a
Hope this helped and brainliest please