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Post by Brutal_Chicken on Mar 3, 2002 14:13:18 GMT -5
8 ) x/16 - sin2x/32 - sinx/64 + sin6x/192 + C
21) 1/2(sin4x) + C
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Post by magnifiedplaid on Mar 3, 2002 22:25:05 GMT -5
8) they both look wrong
22)3pi/16
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Post by Observer on Mar 3, 2002 23:38:51 GMT -5
21.) 1/2(sin4x) + C
Everything else: couldn't do it.
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Achilles
Junior Member
Heh,heh, heh
Posts: 24
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Post by Achilles on Mar 4, 2002 17:45:09 GMT -5
I got:
8) x/16 - sin4x/64 + sin^3(2x) + C (i'm not sure about this answer, but i'm pretty sure the other ones posted are not right either.
21) in the book
22)3pi/8 ( hey magnified plaid, i'm off by a half from your answer, can you check your calculations? i 'll check mine too)
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Post by SquirrelHunterPro on Mar 4, 2002 20:56:25 GMT -5
Everyone is wrong for 8. Only I am right. WA HA HA HA
anyways, i got, 3x/128 - sin2x/4 + sin4x/32
let me re ITERATE through my program from above with public variables... YOU ARE ALL WRONG! hha ha haaaaaa ;D ;D ;D oh shit... need recursions... cannot loop. gah!!! die ppl die!
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Post by Brutal_Chicken on Mar 4, 2002 21:35:10 GMT -5
Someone check with that Integrator website. I plugged it in and it popped out with my answer.
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Post by Miss_Kranky on Mar 4, 2002 22:51:54 GMT -5
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JebusMeany
Junior Member
Who is Jebus Meany?
Posts: 22
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Post by JebusMeany on Mar 4, 2002 23:56:06 GMT -5
Ok, here goes...
8. x/32 + sin4x/128 + C
21. sin^4(x) + C
22. 3pi/16
24.
3cos^2(2x)/256 - (sin2x + cos2x)/128 + x/64 + C
52. pi/2
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Post by Fire Flower on Mar 5, 2002 14:50:53 GMT -5
8. x/16 - sin4x/64 + sin2x/16 + C
21. duh
22. 3pi/16
52. pi/2
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Post by papeto on Mar 5, 2002 16:56:37 GMT -5
#8. 1/24 cos^3xsinx + 1/24(1/2x + 1/4sin2x) - 1/6cos^5xsinx + C  #22 3pi/16 #52 pi/2 |
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Post by Yingster on Mar 5, 2002 17:46:17 GMT -5
8) - 1/64 sin4x + 1/16 x + 1/48 sin32x + C
22) 3pi/16
24) 1/6 sin6x - 1/4 sin8x + 1/10 sin10x + C
52) pi/2
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Post by R on Mar 5, 2002 19:56:11 GMT -5
what does S(sin 2x)^5 dx turn into?
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Post by Brutal_Chicken on Mar 5, 2002 20:00:37 GMT -5
what does S(sin 2x)^5 dx turn into? Who knows? I left it as is. ;D |
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Post by R on Mar 5, 2002 22:11:19 GMT -5
Someone check with that Integrator website. I plugged it in and it popped out with my answer. dun't tell me its this website integrals.wolfram.com/b/c I found some of the soln to be ridiculously incorrect. |
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Post by Brutal_Chicken on Mar 5, 2002 23:09:16 GMT -5
I thought they were wrong too until I moved a few brackets around here and there. It seems to be pretty accurate most of the time, I just wish they tell you HOW it would be done... I don't care if the answer is 0, I wanna know how you got it.
Great, now I sound like all my teachers/TAs/etc... I hope you're happy!
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