Mathematics, 29.07.2019 07:30 riamspmau
Trig question -- if you can! i have to write y = r cos(θ + r) and z = r sin(θ + r) in terms of y, z, and r. i'm not really sure how to do this, so would you mind showing work so i can learn the steps properly? (teacher hasn't taught this super well, haha)
Answers: 1
![\bf \textit{Sum and Difference Identities} \\\\ sin(\alpha + \beta)=sin(\alpha)cos(\beta) + cos(\alpha)sin(\beta) \\\\ cos(\alpha + \beta)= cos(\alpha)cos(\beta)- sin(\alpha)sin(\beta)\\\\ -------------------------------\\\\ y=r[cos(\theta +R)]\implies y=r[cos(\theta )cos(R)-sin(\theta )sin(R)] \\\\\\ y=rcos(\theta )cos(R)-rsin(\theta )sin(R) \\\\\\ z=r[sin(\theta +R)]\implies y=r[sin(\theta )cos(R)+cos(\theta )sin(R)] \\\\\\ z=rsin(\theta )cos(R)+rcos(\theta )sin(R)](/tpl/images/0145/8748/ad676.png)
Another question on Mathematics
Mathematics, 21.06.2019 16:00
If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3
Answers: 2
Mathematics, 21.06.2019 17:00
Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?
Answers: 1
Mathematics, 21.06.2019 18:40
The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?
Answers: 1
Mathematics, 21.06.2019 19:00
Marina baked cookies. she gave 3/4 of the cookies to the scout bake sale. she shared the remaining 6 cookies with her friends. how many cookies did marina bake?
Answers: 3
You know the right answer?
Trig question -- if you can! i have to write y = r cos(θ + r) and z = r sin(θ + r) in terms of y,...
Questions
Physics, 08.12.2020 14:30
Engineering, 08.12.2020 14:30
Social Studies, 08.12.2020 14:30
English, 08.12.2020 14:30
History, 08.12.2020 14:30
Mathematics, 08.12.2020 14:30
English, 08.12.2020 14:30
English, 08.12.2020 14:30
Mathematics, 08.12.2020 14:30
Arts, 08.12.2020 14:30
Business, 08.12.2020 14:30
Mathematics, 08.12.2020 14:30
