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Prove that : 2 tan^-1 (1/5) + tan^-1 (1/4) = tan^-1 (32/43)

+1 vote

asked Jan 25, 2019 in Class 12 by kratos

Prove that : 2 tan-1 (1/5) + tan-1 (1/4) = tan-1 (32/43)

number system
class-11
statistics
probability
measures of central tendency
class-9
class-7
bseb model set
correlation
class-12
regression analysis

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1 Answer

+1 vote

answered Jul 11, 2020 by kratos

Best answer

= tan-1 ((8 x 4)/43) = tan-1 (32/43) R.H.*. proved

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