Rewrite cos4x as an equivalent

Rewrite cos4x as an equivalent expression that does not contain powers of trigonometric functions greater than 1.
1. 2 answers
2. asked by Steve
3. 1,563 views
Power reducing formulas can be used to rewrite 8sin^2 x cos^2 x as 1 - cos4xTrue? Thanks
1. 2 answers
2. asked by mysterychicken
3. 796 views
Rewrite the following expression in terms of tan3x: (sin2x + sin4x)/(cos2x + cos4x)
1. 1 answer
2. asked by Josh
3. 1,108 views
Prove thatcos4x=8cos^4x-8cos^2x+1 so I'm guessing you begin with the left side cos4x=cos2(2x) then im kinda lost
1. 2 answers
2. asked by Natash
3. 1,304 views
the expression cos4x cos3x + sin4x sin3x is equivalent towhich one of the following is the answer: 1) sinx 2) sin7x 3) cosx 4)
1. 4 answers
2. asked by Rony
3. 3,969 views
How do I rewrite log4 1=0 as an equivalent exponential equation? How do I rewrite 4 to the -2 power = 1/16 as an equivalent
1. 0 answers
2. asked by Abby M.
3. 1,176 views
Several questions from my homework, any are appreciated. Thanks!Solve: 1) sinx-tanx=0 2) 3csc^2x=4 Find all solutions within
1. 0 answers
2. asked by Michael
3. 560 views
Find all solutions to the equation in the interval [0, 2pi)cos4x-cos2x=0 So,this is what i've done so far: cos4x-cos2x=0
1. 1 answer
2. asked by Maria
3. 1,648 views
1. Power reducing formulas can be used to rewrite 8sin^2 xcos^2 x as 1-cos4x. True or False?2. Find the exact value of cos15
1. 1 answer
2. asked by mysterychicken
3. 1,953 views
Fill in the blanks!What is an equivalent expression for 3/4x - 5/7 + 11x + 2/7? 1. Use properties of operations to rewrite the
1. 1 answer
2. 44 views