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OpenStudy (amorfide):
http://www.ocr.org.uk/download/pp_09_jan/ocr_34769_pp_09_jan_l_gce_4725_01.pdf question 4 can someone tell me how to do the whole question please, i missed the lesson on how to do it
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OpenStudy (apoorvk):
(AB)^-1 = B^-1 A^-1 this helps?
OpenStudy (amorfide):
thank you
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