zainabnaltaliborq4nm zainabnaltaliborq4nm

26-05-2019
Mathematics

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prabinmagar prabinmagar

27-05-2019

let f(r)=sin^3r/cos^3r

so f(-r)= (sin(-r)/cos(-r))^3

=(-sinr/cosr)^3

=-f(r)

so it is odd function

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