The expression cos4x cos3x+ sin4x

The expression cos4x cos3x+ sin4x sin3x is equilvalent to?
1. 0 answers
2. asked by Sally
3. 612 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. 3,952 views
cos4x*cos3x + sin4x*sin3x
1. 2 answers
2. asked by Daniel
3. 1,236 views
Simplify:(cosx + cos2x + cos3x + cos4x + cos5x + cos6x) / (sinx + sin2x + sin3x + sin4x + sin5x + sin6x) into a single Cotangent
1. 2 answers
2. asked by Jeff
3. 1,711 views
Evaluate the integral e^x sin4x dx.I know the answer is 1/17 e^x sin4x - 4/17 e^x cos4x + C but I don't know how to solve it
1. 1 answer
2. asked by Scott
3. 591 views
Rewrite the following expression in terms of tan3x: (sin2x + sin4x)/(cos2x + cos4x)
1. 1 answer
2. asked by Josh
3. 1,096 views
1.) How would I simplify: sin4x*cos3x -cos3x*sin3x into a single trigonometric function?2.) determine the general solution to
1. 1 answer
2. asked by Leash
3. 905 views
Simplify the expression using trig identities:1. (sin4x - cos4x)/(sin2x -cos2x) 2. (sinx(cotx)+cosx)/(2cotx)
1. 1 answer
2. asked by Tasha
3. 2,869 views
cos4x^2 + sin4x^2?
1. 2 answers
2. asked by Patrick
3. 520 views
2sin(180+x)sin(90+x)/cos⁴x-sin⁴x
1. 1 answer
2. asked by Gcinile
3. 128 views