 Several Mathematics problems? - XP Math - Forums Sign Up FREE! | Sign In | Classroom Setup | Common Core Alignment  XP Math - Forums Several Mathematics problems? 08-02-2007 #1 Coding Apprentice Guest   Posts: n/a Several Mathematics problems? If anybody would like to tell me the solutions and methods for these math problems I would be very grateful.1. If sinx= 5/13 , and pi/2 < x < pi , then sin 2x= ???2. This one might be confusing..------ (10/(x+1)) / (.5 + (3/(x+1)))3. simplify (x+2) +( (x^2-9x-22)/(x^2-121) )SOLVE4. 2cos^2(x)-5cosx-3=05. sin2x=cosx6. simplify--- ((x+y)/x) / (x^-1) + (y^-1)----- Thanks! Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Posting Rules You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules
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