Cosine rule (Finding an Angle) : ExamSolutions
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All Comments (39)
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where the hell did he get that 0.3.... coz when i put that in my calculator i get a different answer m so confused someone explain please
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thumbs up if Hawker college brought you here
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I want this guy to be my teacher instead :)
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@ExamSolutions Thanks
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fuck me it doesnt give me that decimal do you have to put something in brackets on the calculator for the first question i get a decimal of -771.3709
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thankyouuu<3
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u gota simplify it more then showed
23.24/70.76 that gives u the decimal .3284
just had to divide and get the decimal then do the final step it fondled me for a bit also
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@examsolutions...what do you do when the total of your number given after is a negative number..how can you inverse that...for instance cosx = 4^2 + 9^2-7^2/ 2 x 4 x 9 = -785?...please i need some help!
Got an exam coming up and didn't get any of this but then I watched your videos and it is now easy. Thanks a lot, great videos.
Coolguy118118 3 months ago 2
@Coolguy118118 Good luck for the exam
ExamSolutions 3 months ago
I dont know if you are a Examiner, but the first higher Edexcel gcse paper was the most hard one in 5 years (my teacher said that lol) and i hope i revise the right thing for the calc. paper.... THX MATE
mattgomes28 8 months ago
@mattgomes28 Hi - No I am not an examiner but I have heard that it was quite tricky
ExamSolutions 8 months ago
thanks mate this has been a great help but i understand your cosine rule but i dont understand the one exams papers give could i just use the one you did instead?
thesamster199 8 months ago
@thesamster199 Of course (it is the same thing though)
ExamSolutions 8 months ago