Answer:
Step-by-step explanation:
D
Answer: The answer is - 1.
Step-by-step explanation: We are given to find the value of the given expression

We know that 'i' is an imaginary unit and its value is √-1. So, we have

Therefore, the given expression becomes
.
Thus, the answer is - 1.
Answer:
Step-by-step explanation:
90 degrees
x + y = 180
x = y
x + x = 180
2x = 180
x = 180/2
x = 90
Both the angle and its supplement = 90
Answer:

Step-by-step explanation:
Given


Required
The equation of the function
The given parameters means that:


Calculate the slope (m)



The equation is then calculated using:

This gives:


Open bracket

Take LCM

