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Integrate 5sinxcosx + 5cosx

*Use identity sinxcosx = 1/2sin2x

=5/2sin2x + 5cosx

*then use simple integration gives

=(-5/2 x1/2)cosx + 5sinx + c

= =5/4cosx +5sinx + c

JA

Answered by Joanne A. • Maths tutor

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