![subject](/tpl/images/cats/mat.png)
Mathematics, 14.09.2019 11:30 lewisf5929
Let a, b, ybe the angles made by a vector u e r^3 with positive r, y, z-axis respectively. then, the numbers cos a, m = cos cos are called the direction cosines of u. (a) find the formulas for the direction cosines: 1,m, n of the vector u (u1, u2, u3) (b) prove that 12 m2 n2 = 1. (c) find the direction cosines l, m, n of the vector u (1-,1)
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:30
Select the correct answer from the drop-down menu. subtracting 3xy^2 from 8xy^2 gives the same result as the expression. [tex]3xy ^{2} - 8xy ^{2} [/tex][tex] { - 7xy}^{2} - {2xy}^{2} [/tex][tex] {7xy}^{2} - {2xy}^{2} [/tex]
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00
Michael is training for a marathon. in his first week he plans to run 8miles. what path should he take
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 21:20
Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 02:30
You had $235 in your savings account nine weeks ago. you withdrew the same amount each week for 8 straight weeks. your balence was then $75. solve the equation 235 - 8m=75 to find how much money m you withdrew from your account each week. 2 points
Answers: 1
You know the right answer?
Let a, b, ybe the angles made by a vector u e r^3 with positive r, y, z-axis respectively. then, the...
Questions
![question](/tpl/images/cats/en.png)
English, 16.10.2020 01:01
![question](/tpl/images/cats/istoriya.png)
History, 16.10.2020 01:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.10.2020 01:01
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.10.2020 01:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/fizika.png)
Physics, 16.10.2020 01:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.10.2020 01:01
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.10.2020 01:01
![question](/tpl/images/cats/en.png)