NCERT Exercise 4.1 Q2 - Determinants
Question: Evaluate (i) |[[cos theta,-sin theta],[sin theta,cos theta]]| and (ii) |[[x^2-x+1,x-1],[x+1,x+1]]|.
Answer: (i) 1; (ii) x^3-x^2+2.
Full step-by-step NCERT solution with diagrams on Something by Zero.
Question: Evaluate (i) |[[cos theta,-sin theta],[sin theta,cos theta]]| and (ii) |[[x^2-x+1,x-1],[x+1,x+1]]|.
Answer: (i) 1; (ii) x^3-x^2+2.
Full step-by-step NCERT solution with diagrams on Something by Zero.