Question

If sin A = 34 , calculate cos A and tan A.​

Answer 1

Solution of this question is in attached pic .

Answer 2

Answer:

sin A =  

4

3

​  

 

By pythagoras theorem,

(Hypotenuse)  

2

=(Base)  

2

+(Perpendicular)  

2

 

Therefore,

(4)  

2

=(B)  

2

+(3)  

2

 

(B)  

2

=7

B =  

7

​  

 

Therefore,

cos A =  

4

7

​  

 

​  

 and tan A =  

7

​  

 

3

​