Find the impulse response h(t) of a causal system described by y"(t)+y"(t)+9y'(t)+9y(t)=x"(t)+2x'(t), y(0) = y'(0) = y" (0) = x(0) = x'(0) = 0. where x(t) and y(t) are system's input and output and

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Q: F(x) = f(f(x)), G(x)= (F(x))2 f(6)=11, f(11)=2, f'(11)= 14, f'(6)=14 F'(6)= ? G'(6)=?

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