Differentiate $y = (3x-7)\\cos x$.
University of Ilorin MTH102 biochemistry past question
- $3x \\sin x - 7x + 3 \\cos x$
- $-3x \\sin x + 7 \\sin x + 3 \\cos x$
- $(3x-7)\\sin x$
- $3 \\cos x$
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