Question: Find Dx30y in each case, (a) y = x19 + x12 + x5 + 10 (b) y = x20 + x19 + x18 (c) y

Find Dx30y in each case,
(a) y = x19 + x12 + x5 + 10
(b) y = x20 + x19 + x18
(c) y = 7x21 + 3x20
(d) y = sin x + cos x
(e) y = sin 2x
(f) y = 1/x

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