a)\(\displaystyle{y}={\left\lbrace{c}{1}{\cos{{x}}}+{c}_{{{2}}}{\sin{{x}}}+{x},{0}\leq{x}\leq{1}.{c}_{{{1}}}{\cos{{x}}}+{c}_{{{2}}}{\sin{{x}}}+{1},{x}\geq{1}\right.}\)

b)\(\displaystyle{y}={\left\lbrace{x},{0}\leq{x}\leq{1.1},{x}\leq{1}\right.}\)

b)\(\displaystyle{y}={\left\lbrace{x},{0}\leq{x}\leq{1.1},{x}\leq{1}\right.}\)