Find nth derivative of y = Sin(x) Cos3(x) – McqOptions

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1.	Find nth derivative of y = Sin(x) Cos³(x)
A.	(1/4) 2<sup>n</sup>Sin(2x+n /2) + (1/8) 4<sup>n</sup>Sin(4x+n /2)
B.	(1/4) 2<sup>n</sup>Cos(2x+n /2) + (1/8) 4<sup>n</sup>Sin(4x+n /2)
C.	(1/4) 2<sup>n</sup>Sin(2x+n /2) + (1/8) 4<sup>n</sup>Cos(4x+n /2)
D.	(1/4) 2<sup>n</sup>Cos(2x+n /2) + (1/8) 4<sup>n</sup>Cos(4x+n /2)
Answer» B. (1/4) 2<sup>n</sup>Cos(2x+n /2) + (1/8) 4<sup>n</sup>Sin(4x+n /2)

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