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Find the principal values of tan^-1(tan(3π/4))

+1 vote

asked Apr 3, 2019 in Class 12 by kratos

Find the principal values of tan-1(tan(3π/4))

class-12
inverse trigonometric functions

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1 Answer

+6 votes

answered Mar 7, 2020 by kratos

Best answer

tan-1(tan3π/4) = tan-1(tan(π - π/4))

= tan-1(-tanπ/4) = tan-1(-1) = - π/4

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