5. Introduction to Trigonometry

5. Introduction to Trigonometry

17 Maths Exercise Solutions

In right angled at
Determine
Exercise5.1(A), Question No.1
In right angled at
Determine
In a right angled at .Determine
Exercise5.1(A), Question No.2
In a right angled at .Determine
In figure, find .

Exercise5.1(A), Question No.3
In figure, find .

If  calculate  and 
Exercise5.1(A), Question No.4
If  calculate  and 
Given find and
Exercise5.1(A), Question No.5
Given find and
Given, calculate all other trigonometric ratios.
Exercise5.1(A), Question No.6
Given, calculate all other trigonometric ratios.
Ifandare acute angles such that
then, show that
Exercise5.1(A), Question No.7
Ifandare acute angles such that
then, show that
If , evaluate :
Exercise5.1(A), Question No.8
If , evaluate :
If, evaluate

Exercise5.1(A), Question No.9
If, evaluate

If check whether
or not.
Exercise5.1(A), Question No.10
If check whether
or not.