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04-24-2018, 09:45 PM | #16 |
Rose Trellis
Formerly kdhfly
Join Date: Jul 2011
Posts: 1,760
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Re: Are there any super smart math people here?
I agree that the left hand side simplifies to cos(a)/cos(b), but that is obviously not equal to one for all a and b. I think you are right that there is likely a copy error somewhere.
ETA: One can see that it is almost elegant because cos(a+b) is cos(a)cos(b) - sin(a)sin(b). So the second term and the third term cancel each other out in the original expression. But you are left with cos(a)/cos(b)=1.
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DH and four along for our crazy ride The greater the difficulty the greater the glory - Cicero Last edited by OnAMission; 04-24-2018 at 09:48 PM. |
04-27-2018, 07:23 AM | #17 |
Rose Trellis
My sweet boy a few days after his 1st birthday!
Join Date: Mar 2011
Location: Georgia
Posts: 3,320
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Re: Are there any super smart math people here?
So I got my paper back and I got all of the points so I'm posting it in case anyone wants to see it still doesn't really make sense to me but oh well.
Also I found out that I don't have to take the final exam because my grade is already an A!! Sent from my XT1710-02 using Tapatalk
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Krista
Wife to M since 5/09 Mama to E since 8/10 Baby C born 12/19/18! |
The Following 7 Users Say Thank You to Atsirk For This Useful Post: | Aerynne (04-27-2018), ECingMama (04-27-2018), Hermana Linda (04-27-2018), knitlove (04-27-2018), OnAMission (04-27-2018), Singingmom (04-27-2018), squiddles (04-27-2018) |
04-27-2018, 08:49 AM | #18 |
Rose Trellis
Formerly kdhfly
Join Date: Jul 2011
Posts: 1,760
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Re: Are there any super smart math people here?
Awesome!
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DH and four along for our crazy ride The greater the difficulty the greater the glory - Cicero |
The Following User Says Thank You to OnAMission For This Useful Post: | Atsirk (04-27-2018) |
04-27-2018, 08:53 AM | #19 |
Moderator
Leaning, leaning, leaning on the everlasting arms.
Join Date: Oct 2007
Location: In green pastures
Posts: 9,770
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Re: Are there any super smart math people here?
Krista, you are now legitimately a super smart math person. Congrats on your A.
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RiverRock, mom to a 24 year old diamond, 22 year old granite, 19 year old pearl, and 16 year old tiger eye. Married for 25 years to a rugged boulder and resting together on the one true Rock.
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04-27-2018, 03:07 PM | #20 |
Administrator
Oh, sing to the Lord a new song!
Join Date: Apr 2005
Posts: 25,959
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Re: Are there any super smart math people here?
Hurray for you!
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Kelly Wife to my sweetheart for 30 years Grateful mom to 3 young adults Now may the God of hope fill you with all joy and peace in believing, that you may abound in hope by the power of the Holy Spirit. Romans 15:13 |
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