# Experimental Sciences

Discussion of Sports, Exercise & Health Science, Design Technology and advice on which science to take (if more than one science is asked about, ask here).

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• I'm talking about the manipulation of Iago in my IOP but I can't think of any way of including the class or coming up with an activity. Any ideas?
• The wrong approach is to solve for x. The right approach is to apply the double angle identity (sin 2x = 2(sin x)(cos x)). For that, we need to know cos x, which by default is calculated via the pythagorean identity (sin² x + cos² x = 1) whenever we need to convert between sine and cosine of the same angle. cosine is negative in the second quadrant (obtuse angles), ie. cos x < 0 (5/13)² + cos² x = 1, cos x = - sqrt ((169-25)/169) = -12/13 Finally, sin 2x = 2(5/13)(-12/13) = -120/169
• Hiya, I've written a Language A Category 2 EE on the question 'How do Tan and Yoshimoto use symbols to deconstruct societal expectations on Mikage and Waverly’s journeys to self-actualisation?' pertaining to the short story "Rules of the Game" (written in english) and the english translated version of Kitchen (originally written in Japanese). Although I analyse the English version of Kitchen, I don't mention the translator, Megan Backus or anything about the Japanese version. I solely focus on Yoshimoto's purpose/use of language features etc and interpretations of the translated version. Do you see any problems with this approach?
• Given that sinx = 5/13 and x is an obtuse angle. determine the exact value of sin2x.
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