Answer:
Step-by-step explanation:
+ we have
[sin(x)]^2 + [cos(x)]^2 = 1
so [cos(x)]= 1- [sin(x)]^2 = 1- (1/2)^2 = 1- 1/4 = 3/4
Then cos(x) can take one of two values;
+ cos(x) =
then tan(x)= sin(x)/cos(x) = (1/2)/ () =
+ cos(x) = -
then tan(x)= sin(x)/cos(x) = (1/2)/ (- ) = -
Have a good day
Answer:
2 rt5
Step-by-step explanation:
equation of circle
x^2 + y^2 = r^2
4^2 + y^2 = 6^2
16 + y^2 = 36
y^2 = 20
y = sqrt of 20
y = 2 rt5
Answer:
The correct option is third one 51°.
Therefore,
Step-by-step explanation:
Given:
In Triangle XYZ
XY = z = 16
YZ = x = 19
ZX = y = 18
To Find
angle Z = ?
Solution:
In Triangle XYZ, Cosine Rule says
Substituting the values we get
Therefore,
Answer:
<h2>36 + x^4</h2>
Step-by-step explanation:
6^2 + x^2^2
36 + x^4
Hope that helps!
We will be able to build our expression as follows
6 + 8x
When we plug in x=5
6 + 8(5)
We will first do 8*5 = 40
6 + 40
46