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Help with this cosine rule exam question?

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Basically i dont understand how to write this into a calculator because i've tried and i get the wrong answer? am i being dumb or
(edited 7 years ago)
Original post by jessnoch
I'll try and post a pic of the question.
But basically i don't understand how to get this answer on the calculator, i've written what the mark scheme says on the calc and still end up with a different answer


Maybe your calculator is in radians/degrees.

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Reply 2
Original post by s_ahmed2
Maybe your calculator is in radians/degrees.

it turns out i was just putting it in wrong because im stupid, thanks lol
Reply 3
[QUOTE="jessnoch;64337793"]
Original post by s_ahmed2
Maybe your calculator is in radians/degrees.

it turns out i was just putting it in wrong because im stupid, thanks lol


always double check you work :smile:

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