यदि A =B=60^(@)हो , तो प्रमाणित करो कि ...

यदि A =B=60^(@)हो , तो प्रमाणित करो कि tan (A-B) =( tan A -tan B )/(1+ tan A tan B) | 10 | त्रि...

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(a) tan A+tan B+tan C=tan A tan B tan C

Prove that tan(A-B)=(tan A-tan B)/(1+tan A*tan B) , if A=60° & B=45°.

Prove that (tan (AB) + tan B) / (1-tan (AB) tan B) = tan A

(cot A+tan B)/(cot B+tan A)=cot A tan B

Prove: (tan A+tan B)/(cot A+cot B)=tan A tan B

tan^(-1)( (a+b tan c)/ (b-a tan x) )

(tan A + tan B) / (tan (A + B)) + (tan A-tan B) / (tan (AB)) =

tan^(-1) [(a+b tan x)/(b-a tan x)]

(tan A + tan B) / (tan A-tan B) = (sin (A + B)) / (sin (AB))

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