Solve for x: 1. 2sin(2x)+cos(x)=0

2sin(x)cos(x)+cos(x)=0I'm looking for exact value solutions in [0, 3π] So I need to find general solutions to solve the
1. 6 answers
2. asked by Alex
3. 903 views
For the trig equation: 2sin(x)tan(x) = tan(x),Why can't I just divide both sides by tan(x) and be left to solve only 2sin(x)=1?
1. 3 answers
2. asked by Triple_A_Math
3. 372 views
Solve the equation on the interval [0,2pi).2sin^2x-3sinx+1=0 (2sinx+1)(sinx+1) I don't think I did the factoring correctly. When
1. 2 answers
2. asked by Jan
3. 2,589 views
Solve the equation in the interval [0, 2pi].2sin(t)cos(t)-cos(t)+2sin(t)-1=0 Answer needs to be formatted as x={Insert answers
1. 1 answer
2. asked by fblazer90
3. 708 views
Solve for x:1. 2sin(2x)+cos(x)=0 2. cos(2x)=-2sin(x) 3. tan(x)=2sin(x)
1. 0 answers
2. asked by -
3. 597 views
Verify the identities.Cos^2x - sin^2x = 2cos^2x - 1 When verifying identities, can I work on both side? Ex. 1 - sin^2x - sin^2x
1. 1 answer
2. asked by Shadow
3. 639 views
Okay, today, I find myself utterly dumbfounded by these three questions -Write a proof for - 2/(sqrt(3)cos(x) + sin(x))=
1. 2 answers
2. asked by Veronica
3. 878 views
y= 2sin^2 xy=1- sinx find values of x inthe interval 0<x<360 if 2sin^x = 1-sinx this can be arranged into the quadratic. 2sin^2
1. 0 answers
2. asked by Candy
3. 648 views
1. 3cot^2 (x) - 1 = 0My answer: pi/3, 2pi/3, 4pi/3, 5pi/3 2. 4cos^2 (x) - 1 = 0 My answer: pi/3, 2pi/3, 5pi/3, 4pi/3 3. 2sin (x)
1. 2 answers
2. asked by Wanda
3. 1,230 views
Given that y=t^2sin^-1t find the derivative of the function y (Why is the answer 2sin^-1+t/square root of (1-t^2) and not
1. 3 answers
2. asked by Maryanne
3. 143 views