If sin x = 1/2 and x is between pi/2 and 3pi/2, what is the value of x/2? (The answer key says it is 5pi/12, but I have no clue how to
If sin x = 1/2 and x is between pi/2 and 3pi/2, what is the value of x/2? (The answer key says it is 5pi/12, but I have no clue how to
Dave Richeson on Twitter: "Euler proved that π/4=arctan(1/2)+arctan(1/3), which can be used for computing digits of π (using the arctangent series). I wondered if I could prove it without using a trig
![Choose the Correct The Value of Int_(-pi/2)^(Pi/2) (X^3 + X Cos X + Tan^5 X + 1) Dx is - Mathematics | Shaalaa.com Choose the Correct The Value of Int_(-pi/2)^(Pi/2) (X^3 + X Cos X + Tan^5 X + 1) Dx is - Mathematics | Shaalaa.com](https://www.shaalaa.com/images/_4:cb42ed8db3f840ef9890f0564b378205.png)
Choose the Correct The Value of Int_(-pi/2)^(Pi/2) (X^3 + X Cos X + Tan^5 X + 1) Dx is - Mathematics | Shaalaa.com
![If 1/(1^2)+1/(2^2)+1/(3^2)+ tooo=(pi^2)/6,t h e n1/(1^2)+1/(3^2)+1/(5^2)+ equals pi^2//8 b. pi^2//12 c. pi^2//3 d. pi^2//2 If 1/(1^2)+1/(2^2)+1/(3^2)+ tooo=(pi^2)/6,t h e n1/(1^2)+1/(3^2)+1/(5^2)+ equals pi^2//8 b. pi^2//12 c. pi^2//3 d. pi^2//2](https://d10lpgp6xz60nq.cloudfront.net/web-thumb/645290556_web.png)
If 1/(1^2)+1/(2^2)+1/(3^2)+ tooo=(pi^2)/6,t h e n1/(1^2)+1/(3^2)+1/(5^2)+ equals pi^2//8 b. pi^2//12 c. pi^2//3 d. pi^2//2
![SOLVED: If sin x =1/3 and sec y =5/4, where x and y lie between 0 and Pi/2, evaluate the expression. cos(x+y) SOLVED: If sin x =1/3 and sec y =5/4, where x and y lie between 0 and Pi/2, evaluate the expression. cos(x+y)](https://cdn.numerade.com/ask_previews/b4299b00-e039-4425-b547-d063b3f8cede_large.jpg)
SOLVED: If sin x =1/3 and sec y =5/4, where x and y lie between 0 and Pi/2, evaluate the expression. cos(x+y)
![trigonometry - If $z = cis(2k\pi/5)$, $z \neq 1$, then what is $(z+1/z)^2 +(z^2 + 1/z^2)^2=$? - Mathematics Stack Exchange trigonometry - If $z = cis(2k\pi/5)$, $z \neq 1$, then what is $(z+1/z)^2 +(z^2 + 1/z^2)^2=$? - Mathematics Stack Exchange](https://i.stack.imgur.com/1TSYa.png)