Prove (cos^2t+4cos^2+4)/(cost+2)=2sect+1)/sect

sin^4cos^2x=(1/16)(1-cos 2x)(1-cos4x) work one 1 side only!

y=4cos(3x-2(3.14))

sin(4x)/sin(x)=4cos(x)cos(x) verify the identity

(cos^2t+4cos^2+4)/(cost+2)=(2sect+1)/sect

Q1: Prove cos^2t+4cost+4/cost+2=2sect+1/sect Q2: A ship leaves port with a bearing of S 40 W...

(3-4cos(2x)+cos(4x))/(3+4cos(2x)+cos(4x))=tan^6(x)

If sin(x) = 4cos(x), then what is (sin(x))*(cos (x))?

Prove that sinA+sinB+sinC=-4cosA/2cosB/2cosC/2

Prove That Cos3A = 4Cos A - 3Cos A

Prove 8sin^5x=sinx(3-4cos(2x)+cos(4x))

Question