John H
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 Aug 23 comment Should cosecant be defined as $\csc \theta = \frac{1}{\sin \theta}$, specifying the constraint: $\sin \theta \neq 0$? Thanks for this. :) Aug 23 accepted Should cosecant be defined as $\csc \theta = \frac{1}{\sin \theta}$, specifying the constraint: $\sin \theta \neq 0$? Aug 23 asked Should cosecant be defined as $\csc \theta = \frac{1}{\sin \theta}$, specifying the constraint: $\sin \theta \neq 0$? Oct 11 comment Why are these logical statements not deemed to be equivalent? @ajotatxe Thanks for the comment. I'm inclined to agree, but I'd like some more feedback as the answer below has left me uncertain. Oct 11 comment Why are these logical statements not deemed to be equivalent? Sorry for the delayed response, and thanks for getting back to me. The book is Core Maths for Advanced Level, which is basically covering the core sections of the UK maths curriculum that 16-18 year olds would study, so it's by no means a book on pure logic. Oct 11 comment Why are these logical statements not deemed to be equivalent? I initially thought this, but it's only asking whether or not the point is on the line. It's not asking whether the equation the point was generated by is the same line. Oct 11 awarded Student Oct 11 asked Why are these logical statements not deemed to be equivalent? Sep 25 awarded Commentator Sep 25 accepted Without solving the equation, determine the nature of its roots: $x^2 + ax + a^2 = 0$ Sep 25 comment Without solving the equation, determine the nature of its roots: $x^2 + ax + a^2 = 0$ @MickG Contacting the authors is a good idea actually. I hadn't considered that. There is no qualifier ruling that a is not equal to zero, so it's a definite problem. This book is 15 years old, but I've never been able to find any published errata for it. Sep 25 comment Without solving the equation, determine the nature of its roots: $x^2 + ax + a^2 = 0$ Thanks for the confirmation. Sep 25 comment Without solving the equation, determine the nature of its roots: $x^2 + ax + a^2 = 0$ @taninamdar Thank you. Sep 25 asked Without solving the equation, determine the nature of its roots: $x^2 + ax + a^2 = 0$ Feb 16 comment Active learning vs Passive learning in Math That actually makes sense, thanks. Feb 16 comment Active learning vs Passive learning in Math Would you consider 'deliberate learning' to be the same as 'active learning'? Nov 9 comment Logic - Translate a Math Statement Oh, now it makes sense. Thanks a lot! Nov 9 comment Logic - Translate a Math Statement Doesn't "you must pay the daily fee unless you are a subscriber to the service" imply they are mutually exclusive, rather than inclusive? Jul 23 awarded Scholar Jul 23 accepted Why can/do we multiply all terms of a divisor with polynomial long division?