For which values of a E R the tangent plane to the graph of f(r, y) = 1+ sin(ar + y?) at the point (0, VT, 1) is parallel to the ry-plane? (A) V (B) 0 (C) none (D) every value

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Q: For which values of a E R the tangent plane to the graph of f(r, y) = 2+ sin(r + ay) at the point…

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