====== Question 5 and 6, Review Exercise ======
Solutions of Question 5 and 6 of Review Exercise 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=====


** Solution. **





=====Question 6=====


** Solution. **




====Go to ====

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