====== Question 5(i-v), Exercise 9.1 ======
Solutions of Question 5(i-v) of Exercise 9.1 of Unit 09: Trigonometric Functions. This is unit of Model Textbook of Mathematics for Class XI published by National Book Foundation (NBF) as Federal Textbook Board, Islamabad, Pakistan. 

=====Question 5(i)=====
Draw the graph of each of the function: $y=2 \operatorname{Sin} x$

** Solution. **



=====Question 5(ii)=====
Draw the graph of each of the function: $y=2 \operatorname{Cos} 3 x$

** Solution. **


=====Question 5(iii)=====
Draw the graph of each of the function: $y=2 \operatorname{Tan} 2 x$

** Solution. **


=====Question 5(iv)=====
Draw the graph of each of the function: $\mathrm{y}=\operatorname{Cos} \frac{\mathrm{x}}{2}$

** Solution. **



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