Question

what is tan inverse of a-b​

Answer 1

Answer:

cot( a-b)

Step-by-step explanation:

i hope you got the answer

Answer 2

Answer:

You can write tan(x)=sin(x)/cos(x).

Hence you can write tan(A-B)=sin(A-B)/cos(A-B)

Now you can substitute sin(A-B)= sinA cosB-cosA sinB

cos(A-B)= cosA cosB+sinA sinB.

Hence, you get tan(A-B)= sinA cosB-cosA sinB/cosA cosB+sinA sinB

Divide the numerator and denominator by same factor cosA cosB. (Hence, it'll not change the result.)

therefore the equation changes into the desired formula,

tan(A-B)= tanA-tanB/1+tanA tanB

Step-by-step explanation:

I hope this answer is helpful for you...

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