Using five significant figures in the computations, determine d(sinx)/dx at x = 0.8 from a) the first forward difference approximation and b) the first central approximation. In each case, use h that gives the most accurate result(this requires experimentation).

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Q: 2. Calculate the centroid of the thin plate R which bounded by r= 1, y = 0 and, z² + y² = 4.

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Q: 2. Calculate the centroid of the thin plate R which bounded by r = 1, y = 0 and, 2² + y² = 4.

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Q: 2. Calculate the centroid of the thin plate R which bounded by z = 1, y = 0 and, 2² + y² = 4.

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Q: • !!! 622 dV where G is bounded by x + 2y + 4z = 8 in the first octant. 3. Evaluate

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Q: 2. Calculate the centroid of the thin plate R which bounded by z = 1, y = 0 and, z² + y² = 4. fcc

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Q: 3. Evaluate III. 622 dV where G is bounded by r + 2y + 4z = 8 in the first octant.

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Q: Calculate the centroid of the thin plate R which bounded by z = 1, y = 0 and, ² + y² = 4.

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Q: 3. Evaluate 622 dV where G is bounded by a + 2y + 4z = 8 in the first octant.

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