_8. Write the equation (x - 8)2 + (y + 7)2 = 225 to general form. 9. Transform x + y? - 2x - 8y - 47 = 0 to standard form. 10. Write the equation of a circle in general form if it centered at (-3, 2) and passes through (4, -6)

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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_8. Write the equation (x 8)2 + (y + 7)2 = 225 to
general form.
9. Transform x + y? - 2x - 8y - 47 = 0 to standard
form.
10. Write the equation of a circle in general form if it
centered at (-3, 2) and passes through (4, -6)
_11. Find the value of k to make x + y2 - 6x + 8y + 5
- k an equation of a circle.
_12. Find the equations of the circles which are
concentric having centers at (-4,3) with radii 3 and 5, in standard and general
form.
Transcribed Image Text:_8. Write the equation (x 8)2 + (y + 7)2 = 225 to general form. 9. Transform x + y? - 2x - 8y - 47 = 0 to standard form. 10. Write the equation of a circle in general form if it centered at (-3, 2) and passes through (4, -6) _11. Find the value of k to make x + y2 - 6x + 8y + 5 - k an equation of a circle. _12. Find the equations of the circles which are concentric having centers at (-4,3) with radii 3 and 5, in standard and general form.
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