Answer:
(a)
(b) 
Step-by-step explanation:
It is given that
.
(a)
(b)
![[\because \sin x=\dfrac{1}{\csc x}]](https://tex.z-dn.net/?f=%5B%5Cbecause%20%5Csin%20x%3D%5Cdfrac%7B1%7D%7B%5Ccsc%20x%7D%5D)

Therefore,
.
Answer:I forgot how to do that one but I had it
Step-by-step explanation:I’m sorry
Answer:
Rhe equation would be y= -2x+8
C=2πr=2·π·13≈81.68141
C=81.68
Answer:
The exponent is 5 because a exponent is what the number times itself like 3^2 is 9.