how to solve y= 3cos2x

how to solve y= 3cos2x + 5pls help me
1. 1 answer
2. asked by emily
3. 851 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. 823 views
Solve for all real values of x3cos2x - 5cosx = 1
1. 1 answer
2. asked by Miranda
3. 1,888 views
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. 2,011 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. 833 views
Solve for x in the interval 0<=x<360:1. 2sin2x+cosx =0 2. cos2x=-2sinx 3. tanx=2sinx 4. 3cos2x+cosx+2=0
1. 0 answers
2. asked by `
3. 710 views
3cos2x-sinx=0
1. 1 answer
2. asked by Lawal R
3. 131 views
What are the solutions for 3cos2x=-3 if 0≤ x ≤ 2pi
1. 1 answer
2. asked by Anonymus
3. 1,196 views
3cos2x-7cosx+5=0 0<x<360thanks
1. 1 answer
2. asked by danial
3. 749 views
Find the integral of 3cos2x-2sinx
1. 4 answers
2. asked by Samuel
3. 769 views