OCR C4 2006 June — Question 1

Exam BoardOCR
ModuleC4 (Core Mathematics 4)
Year2006
SessionJune
TopicImplicit equations and differentiation
1 Find the gradient of the curve \(4 x ^ { 2 } + 2 x y + y ^ { 2 } = 12\) at the point \(( 1,2 )\).
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