Cos Pi/4 (updated 2024-12-03)

If z  cos pi4  i sinpi6 then calculate z and argz [upl. by Eixor]
Duration: 2:22
11 views | 24 Sep 2022
Prove that cospi4x cos pi4x12sin2x [upl. by Adolphe843]
Duration: 1:51
1K views | 11 Oct 2018
cospi2xsinx trigonometry identies solve [upl. by Pawsner409]
Duration: 1:42
9.9K views | 6 Dec 2020
cos pi2  cscpi2 find the exact value [upl. by Grath]
Duration: 0:32
5K views | 20 Nov 2017
ycos xpi over 4 [upl. by Stroud]
Duration: 4:03
14.1K views | 23 Feb 2013
Prove that cospi4xcospi4ysinpi4xsinpi4ysinxy [upl. by Nessnaj]
Duration: 2:06
6.8K views | 19 Jul 2018
cospi4cospi12sinpi4sinpi12  Compound Angles Trigonometry [upl. by Lebasiram613]
Duration: 1:12
208 views | 8 Jan 2019
Integral of cospixx2  Integral example [upl. by Najram227]
Duration: 2:07
7.5K views | 28 Jan 2018
Prove that cospi4xcospi4xsqrt2cosx [upl. by Corbie]
Duration: 2:32
2.2K views | 22 May 2017
4cospi2  isinpi2 [upl. by Arikal]
Duration: 0:26
4.2K views | 31 Mar 2013
cospi4 [upl. by Loriner]
Duration: 3:25
5.2K views | 13 Apr 2020
cos pi12  cos 5pi12  sin 5pi12  sin pi12 [upl. by Hardin]
Duration: 1:17
17.5K views | 6 Feb 2013
cospi4xcospi4ysinpi4xsinpi4ysinxy [upl. by Torrin]
Duration: 2:50
5.8K views | 29 Dec 2019
Valeurs de cospi4 et sinpi4 [upl. by Aitrop175]
Duration: 4:31
5.1K views | 29 May 2013
trig challenge PROVE cospi7cos2pi7cos3pi7  cospi3 [upl. by Denton]
Duration: 0:48
9.9K views | 18 Oct 2014
2cospi10  isinpi105 [upl. by Yolane]
Duration: 0:54
5.8K views | 1 Apr 2013
cospi  x cosxsinpi  x cospi2  x  cot2 x [upl. by Howlond501]
Duration: 2:55
3.5K views | 7 Nov 2020
cos pi4 [upl. by Lounge679]
Duration: 0:14
9.4K views | 16 Mar 2020
prove cosx  pi2  sinx [upl. by Aaberg]
Duration: 1:36
2 views | 1 month ago
3cospi4  i  sinpi4  16 [upl. by Gustavus226]
Duration: 2:41
22 views | 3 weeks ago



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