NCERT Exercise 12.2 Q11 - Limits and Derivatives
Question: Find derivatives of: (i) sin x cos x, (ii) sec x, (iii) 5 sec x+4 cos x, (iv) cosec x, (v) 3 cot x+5 cosec x, (vi) 5 sin x-6 cos x+7, (vii) 2 tan x-7 sec x.
Answer: (i) cos^2x-sin^2x; (ii) sec x tan x; (iii) 5sec x tan x-4sin x; (iv) -cosec x cot x; (v) -3cosec^2x-5cosec x cot x; (vi) 5cos x+6sin x; (vii) 2sec^2x-7sec x tan x.
Full step-by-step NCERT solution with diagrams on Something by Zero.