Question

then B =?
It tan²25= Cosee ²B​

Answer 1

Answer:

Step-by-step explanation:

Given tanA=2tanB+cotB

⟹tanAtanB=2tan  

2

B+1

tanA−tanB=2tanB+cotB−tanB=tanB+cotB=  

tanB

tan  

2

B+1

​

 

2tan(A−B)=  

1+tanAtanB

2(tanA−tanB)

​

 

                        =  

1+2tan  

2

B+1

2(  

tanB

1+tan  

2

B

​

)

​

 

                        =  

2(1+tan  

2

B)tanB

2(1+tan  

2

B)

​

 

                        =cotB