Question 9, Exercise 9.1

Solutions of Question 9 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.

Solve graphically: sinx=cosx

Solution.

Solve graphically: cosx=x

Solution.

Solve graphically: sinx=x

Solution.

Solve graphically: tanx=x

Solution.