1. Use the substitution z = following differential equation xy, where z is a function of x, to solve the OUTM dy + y = 3x² (1+ x²y?) . TM &UT X- dx

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Q: 0. Prove that (i) |4' ||, =||4||,, and (ii) ||4' A|| -||4|-

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Q: A. Use polar coordinates to describe the region shown. 1.

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