Find the points of inflexion for f(x) =(sinx+cosx)
Discuss the concavity and convexity.
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18
Given f(x)=(sinx+cosx)
f'(x)=cosx-sinx
f''(x)=-sinx-cosx
-(sinx+cosx)
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45
Given f(x)=(sinx+cosx)
Given f(x)=(sinx+cosx)f'(x)=cosx-sinx
Given f(x)=(sinx+cosx)f'(x)=cosx-sinxf''(x)=-sinx-cosx
Given f(x)=(sinx+cosx)f'(x)=cosx-sinxf''(x)=-sinx-cosx-(sinx+cosx)
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