The equation of the tangent plane to the surface X(u, v) = (u + v)e, + (u – v)ez – uve; at X(1, –1) is : y +z = 1 z - x = 1 The above answer The above answer x + y+z = -1 x + y+z = 1 O The above answer O The above answer

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A:

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A:

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A: option (d) is correct

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