Recent content by nyswthun

sin (2x) = square root 3/2 interval - 0 less than, equal to x less than 2pi What's the solution set...... i got pi/6 and 2pi/6 (is it right?) What are more solution set??? I guess i need 4 of them. thnxs :)

Interval [0, 2pi) 2 sin^2x-cosx-1=0 What is the solution set??? When i factored i got: -(2 sinx-1)(sinx+1)=0 sin x= -1/2 and -1 so isn't it solution set is: pi/3, 5pi/3, and 3pi/2??? Please help. thnxs :)

Reference Angle: 1. 5pi/6 2. csc 5pi/3 3. sin (-23pi/3) Help needed in all... thnxs!

Find the exact value of the given trig. function. 1. Cos 13pi/4 2. sec (-13pi/4) PLEASE HELP ME WITH BOTH & SHOW HOW YOU GOT THE ANSWERS THNXS :)

Reference Angle for: 1. Cos (360 degree) 2. Sin (-45 degree) Help please thnxs :)

Reference Angle for: 1. Cos (360 degree) 2. Sin (-45 degree) Help please thnxs :)

Does anyone know what are the controversies that is been going on since 1550's when maps were first made till today??? I need details so where can i find that... Help needed thnxs!