Answer:
1 and 0
Step-by-step explanation:
sin( [tex]\frac{\pi }{2}[/tex] ) = 1, hence
sin³([tex]\frac{\pi }{2}[/tex] ) = 1³ = 1
cos( [tex]\frac{\pi }{2}[/tex] ) = 0, hence
cos³ ([tex]\frac{\pi }{2}[/tex] ) = 0³ = 0
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,
SIn³ π/2 = 1³ = 1
cos³ π/2 = 0³ = 0
