- #1
roger
- 318
- 0
hi, I am stuck on this question for homework :
I'm not sure how to find the answer, as I thought integration is used only if the curve intersects at the x-axis ?
Thanx for any help
1.) The equation of circle x^-8x+y^2-10y=-16
It intersects the y-axis at two points : (0,2) and (0,8)
Find the small area between the curve and the y axis.(on the left of the y axis)
2.) Also, the chord between 0,2 and 0,8 on the circle subtends an angle at the centre (4,5).
Show that the angle is 7/25 using the cosine rule.
I'm not sure what to do here as well..
I'm not sure how to find the answer, as I thought integration is used only if the curve intersects at the x-axis ?
Thanx for any help
1.) The equation of circle x^-8x+y^2-10y=-16
It intersects the y-axis at two points : (0,2) and (0,8)
Find the small area between the curve and the y axis.(on the left of the y axis)
2.) Also, the chord between 0,2 and 0,8 on the circle subtends an angle at the centre (4,5).
Show that the angle is 7/25 using the cosine rule.
I'm not sure what to do here as well..