Answer:
Given the expression: ![\sin^{-1}(\cos(\frac{\pi}{2}))](https://tex.z-dn.net/?f=%5Csin%5E%7B-1%7D%28%5Ccos%28%5Cfrac%7B%5Cpi%7D%7B2%7D%29%29)
Let the value of the given expression in radians be ![\theta](https://tex.z-dn.net/?f=%5Ctheta)
then;
![\sin^{-1}(\cos(\frac{\pi}{2})) =\theta](https://tex.z-dn.net/?f=%5Csin%5E%7B-1%7D%28%5Ccos%28%5Cfrac%7B%5Cpi%7D%7B2%7D%29%29%20%3D%5Ctheta)
......[1]
We know the value of ![\cos \frac{\pi}{2} = 0](https://tex.z-dn.net/?f=%5Ccos%20%5Cfrac%7B%5Cpi%7D%7B2%7D%20%3D%200)
Substitute the given value in [1] we have;
![\sin \theta = 0](https://tex.z-dn.net/?f=%5Csin%20%5Ctheta%20%3D%200)
Since, the value of
is 0, therefore, the value of
is in the form of:
; where n is the integer.
At n =0, 1 and 2, {Since, n is the integer}
Value of
and
therefore, the answer in radians either
or
45÷9=5 they can put 5 plants in each square feet.
It would be 80 because 2 times 120 is 240. 240 divided by 3 is 80