Report - = 4 + 6 + 8 = 18 MPa = 4 6+6 8+4 8-1 1-2 2-0 = 99 MPa = 4 ...1 6 4 8 18 MPa I 2 6 4 4 8 6 8 1 2 2 99 MPa 160 2 5 I 3 6 30 1 10 2 MPa which remains unc hanged. Hence proved. Example

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