Solve 3cos2x - 7cosx =

Solve 3cos2x - 7cosx = 0, when 0<=x<=360And also, find the exact values for x when 0<=x<=360 if 3tan^2x=1 Thankyou!
1. 3 answers
2. asked by Rose
3. 1,992 views
3cos2x-7cosx+5=0 0<x<360thanks
1. 1 answer
2. asked by danial
3. 730 views
how to solve y= 3cos2x + 5pls help me
1. 1 answer
2. asked by emily
3. 831 views
Hi there,Can someone help me with the question: "Prove that the value of 7sinx +3cos2x cannot be greater than 5/1/24 for all
1. 4 answers
2. asked by Joshua
3. 801 views
Solve for all real values of x3cos2x - 5cosx = 1
1. 1 answer
2. asked by Miranda
3. 1,869 views
use a graphing utility to solve each equation, rounded to 2 decimal places1. x^2 - 2sin2x = 3x 2. x^2 = x + 3cos2x
1. 1 answer
2. asked by KC
3. 806 views
how can i solve for x given this?? pls. show detailed solution..just can't figure it out.thanks in advance!6cosx+3cos35cosx-3sin
1. 1 answer
2. asked by Cara
3. 475 views
how can i solve for x given this?? pls. show detailed solution..just can't figure it out.thanks in advance!6cosx+3cos35cosx-3sin
1. 1 answer
2. asked by cara
3. 584 views
solve each equation for 0=/<x=/<2pisin^2x + 5sinx + 6 = 0? how do i factor this and solve? 2sin^2 + sinx = 0 (2sinx - 3)(sinx
1. 7 answers
2. asked by sh
3. 992 views
Verify the identity.sin2x/cosx + sinx = 2sinx Solve for all values of x: 6cos2x-7cosx-3=0 If f(x)=cos1/2x-sin2x find the value
1. 1 answer
2. asked by .
3. 905 views