Are the following DEs exact? If so, solve them. 1.1 (2.ry – y sin x – sin z) da + (x² cos x + cos y) dy = 0 1.2 (x²y + sin y) dr + (rª + x cos y) dy = 0 1.3 (y sin a) dr + (sin z) dy = 0

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A: Given DE is xy'-2y=x3x2+1 solve the first order linear equation   

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A: Please see the explanation below

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A: missing value = 30   explanation is given in below step

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A: The given integral can be evaluated as follows.

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A: Please see the answer below with detailed steps.

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