4/9+5/6 what is it?HELP!
1 answer:
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Answer:
Step-by-step explanation:
Tan can be defined as: as it simplifies to opposite/adjacent. If you know a bit about the unit circle, you'll know that the x-coordinate is going to be cos(theta) and the y-coordinate is going to be sin(theta). Since the sin(theta) is defined as opposite/hypotenuse, and the hypotenuse = 1, so sin(theta) is defined as the opposite side, which is the y-axis. Same thing goes for cos(theta), except the adjacent side is the x-axis.
Using this we can define tan
By definition we have to:
In mathematics, the inverse multiplicative, reciprocal or inverse of a non-zero number x, is the number, denoted as 1/x or x -1, which multiplied by x gives 1.
We have then:
1) i
The multiplicative inverse is:
Rewriting we have:
Answer 3) -i
2) i^2
The multiplicative inverse is:
Rewriting we have:
Answer 4) -1
3) i^3
The multiplicative inverse is:
Rewriting we have:
Answer 1) i
4) i^4
The multiplicative inverse is:
Rewriting we have:
Answer 2) 1