The 404 Manager plugin uses the sqlite plugin for all new functions above the version v1.1.0 (09-07-2016). You need do install it if you want to use them. See the changes file for the list of new functionalities. [:2]

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.

Question 9(i)

Solve graphically: $\sin x=\cos x$

Solution.

Question 9(ii)

Solve graphically: $\cos x=x$

Solution.

Question 9(iii)

Solve graphically: $\sin x=x$

Solution.

Question 9(iv)

Solve graphically: $\tan x=x$

Solution.

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