Mathematics · Calculus

The curve x2 - xy + y2 = 27 has tangents parallel to the x-axis at the points:

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1(3, 6) and (-3, -6)✓
2(3, -6) and (-3, 6)
3(-3, -6) and (3, -6)
4(-3, 6) and (-3, -6)

Correct answer

(3, 6) and (-3, -6)

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The curve x2 - xy + y2 = 27 has tangents parallel to the x-axis at the points:

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The curve x2 - xy + y2 = 27 has tangents parallel to the x-axis at the points:

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