Question

Fonmula: ( Q cdot tan ^{-1}(x)=operatorname{Oog}^{-1}left(frac{1-x^{2}}{1+x^{2}}right) )
( 80,2 tan ^{-1}|sqrt{frac{a-b}{a+b}} cdot tan theta / 2| )

# VIII. Prove that 2 tan-tuatan 1 = cos-1673 Vatb a+b cose

Solution

Instasolv

Solution