Use the unit circle to find the value of sin ³π/2 and cos ³π/2
2 answers:
Answer:
SIn³ π/2 = 1³ = 1
cos³ π/2 = 0³ = 0
Step-by-step explanation:
Considering a circle of unit radius as shown in the image below.
So, OB = OA = 1 unit
Thus, by Pythagoras theorem,
OB² + OA² = AB²
So, AB² = 2
AB = √2 units
If ∠OAB = 90°
Then AB and OA approaches to OA. SO,
OB = AB = 1 unit and OA = 0
Thus,
SIn π/2 = P/H = 1/1 = 1
Cos π/2 = B/H = 0/1 = 0
So,
<u>SIn³ π/2 = 1³ = 1 </u>
<u>cos³ π/2 = 0³ = 0 </u>
Answer:
1 and 0
Step-by-step explanation:
sin( ) = 1, hence
sin³( ) = 1³ = 1
cos( ) = 0, hence
cos³ ( ) = 0³ = 0
You might be interested in
Answer:
6.72 Hours
Step-by-step explanation:
Since the new phone can last 60% Longer than 4.2 hours, we multiply 4.2 by .6 and then add it back to 4.2
4.2 X 60% = 2.52
2.52+4.2=6.72
Therefore, the new phone can last 6.72 hours
Answer: 5: 7
Step-by-step explanation:
The total number for teacups: 2 yellow teacups + 5 brown teacups = 7 teacups
the ratio compares the number of brown teacups to the total number of teacups is :
5: 7
Answer:
a) Y = -3x/5 + 15
b) Y = 3 - 0.6x
d) Volume = 15Pi
e) Volume of cone = 15pi
Step-by-step explanation:
The detailed steps and appropriate integration is as shown in the attached file.
No matter how many circles there are 80% of the circles will be blue as 4 to 5 translates to 8 to 10 which is 80%. The remaining circle ( the other 20%) can be any color but blue.
Answer:
y = mx + b
m = (-5-1)/(3-1)
m = -3
1=(-3)1 + b
b= 4
y= -3x + 4