Math, asked by vyshnav16, 3 months ago

If sin A = 3/4, Calculate cos A and tan A.





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Answers

Answered by bhattacharyyaakash22
2

Answer:

Given, sinA=  

4

3

​  

 

⇒  

DC

BC

​  

=  

4

3

​  

 

⇒BC=3k and AC=4k

where k is the constant of proportionality.

By Pythagoras theorem, we have

AB  

2

=AC  

2

−BC  

2

=(4k)  

2

−(3k)  

2

=7k  

2

 

⇒AB=  

7

​  

k

So, cosA=  

AC

AB

​  

=  

4k

7

​  

k

​  

=  

4

7

​  

 

​  

 

And tanA=  

AB

BC

​  

=  

7

​  

k

3k

​  

=  

7

​  

 

3

Step-by-step explanation:

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Answered by dilipbagde00
0

Answer:

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