Solution :
We have been given a parametric curve :
x = sin t , y = cos t , 0 < t < π
In order to determine concavity of the given parametric curve, we need to evaluate its second derivative first.
Therefore,
Taking double derivatives of the above equation:
For the concave up, we have
∴
For the concave down, we have
Answer:
A, B, D, F
Step-by-step explanation:
The domain of a function is the range of its inverse.
The composition of a function and its inverse is an identity.
136/15
5 4/10+3 6/9
=54/10+33/9
=9*54+10*33/90
=486+330/90
=816/90
=136/15
10 + 5x hope it helps