NCERT Miscellaneous Exercise Q1 - Limits and Derivatives

Question: From first principles differentiate: (i) -x, (ii) (-x)^(-1), (iii) sin(x+1), (iv) cos(x-pi/8).

Answer: (i) -1; (ii) 1/x^2; (iii) cos(x+1); (iv) -sin(x-pi/8).

Full step-by-step NCERT solution with diagrams on Something by Zero.

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