Maths-
General
Easy
Question
In 
- 2
- r
- 2r
Hint:
In this question we have to use the formula of Solution of triangle.
and 
,
and 
The correct answer is:
In this question we have to find the value of 
We know that 
By putting these values in the given expression
=> 
=>
=>
We know that , and
=>
=>
=>
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Maths-General
