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- Question 4, Exercise 6.3
- nit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Feder... \end{array} \] \begin{align*}n & =9 \quad \text{put in (i)}\\ 10 r-3(9)-3 & =0 \\ 10 r-30 & =0 \\ r ... \ \end{array} \] \begin{align*} r&=27\quad \text{put in (i)}\\ 7(27)-3 n-3 & =0 \\ 186-3 n & =0 \\ n ... t{and}\\ n & =2 r \quad\cdots (ii)\\ \end{align*} Put (ii) in (i)\\ \begin{align*}6(2r)-11r-5&=0\\ 12r
- Question 16 and 17, Exercise 6.2
- nit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Feder... t place have an odd digit.\\ If at units place we put $1$\\ than possible arrangements for remaining t
- Question 3, Exercise 6.3
- nit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Feder... n} C_{n-r}$$\\ Here \begin{align*}n=15\quad&\text{put} \quad r=3 r\\ n-3 r&=r+3\\ 15-3 r&=r+3 \\ 15-3
- Exercise 6.1 (Solutions)
- book “Model Textbook of Mathematics for Class XI” published by National Book Foundation (NBF) as Feder
- Question 1, Exercise 6.1
- nit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Feder
- Question 2, Exercise 6.1
- nit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Feder
- Question 3 and 4, Exercise 6.1
- nit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Feder
- Question 5, Exercise 6.1
- nit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Feder
- Question 6(i-v), Exercise 6.1
- nit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Feder
- Question 6(vi-ix), Exercise 6.1
- nit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Feder
- Question 7(i-vi), Exercise 6.1
- nit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Feder
- Question 7(vii-xi), Exercise 6.1
- nit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Feder
- Exercise 6.2 (Solutions)
- book “Model Textbook of Mathematics for Class XI” published by National Book Foundation (NBF) as Feder
- Question 1, Exercise 6.2
- nit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Feder
- Question 2, Exercise 6.2
- nit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Feder