June 2006 - C1 and C2 Solutions Watch

insparato
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#81
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#81
(Original post by want2know)
I'm sure they made a mistake with core 2 question 8 (c), they asked you to work to work the angle <CAD in radians but we were already given angle <BAC as 0.65 radians. May just be me though! The OP also didn't give a solution for this question...
I wrote the mark scheme and i did write the answer to that question, baal_k must of missed it nevermind no harm done,

Okay you know that <bac is 0.65 radians. You also know that <bad = 90 degrees ie pi/2 radians.

Thus the angle <CAD = <BAD - <BAC = pi/2 - 0.65 = 0.92 radians (2dp)
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want2know
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#82
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#82
Thanks insparato
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insparato
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#83
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No problem. I myself didnt get full marks thats for sure:rolleyes:. But i do know the answers to the marks i lost and nobodies complained about my mathematics yet.
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