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prove the following result tan^-1(2/3)=1/2 tan^-1(12/5)

prove the following result
tan^-1(2/3)=1/2 tan^-1(12/5)

Grade:12

1 Answers

Rinkoo Gupta
askIITians Faculty 80 Points
7 years ago

tan-1(2/3)=(1/2) .2tan-1(2/3)

=1/2. tan-1(4/3)/(1-4/9)

=(/12).tan-1(4/3)/(5/9)

=1/2tan-1(12/5)

Thanks & Regards

Rinkoo Gupta

AskIITians Faculty

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