1) Answer each of the following "true" or "false", giving explanations for your answer. a) The double integral " L"rdrd0 will compute half of the area inside the annular (bullseye – shaped) region...

Please solve ( part b ) correclty and get the thumb up

Extracted text: 1) Answer each of the following "true" or "false", giving explanations for your answer. a) The double integral " L"rdrd0 will compute half of the area inside the annular (bullseye – shaped) region between the circles x? + y? = 1 and x2 + y? = 4. b) If we are at the point (1, 2, 4) on the surface z = xy2, and we move a short distance in the direction (G), my new z – value will still be approximately 4.