if sin θ+sin^2 θ+ sin^3 θ = 1 prove that cos ^6 θ - 4 cos ^4 θ 8 cos^2 θ = 4
M mooch New member Joined Sep 2, 2013 Messages 1 Sep 2, 2013 #1 if sin θ+sin^2 θ+ sin^3 θ = 1 prove that cos ^6 θ - 4 cos ^4 θ 8 cos^2 θ = 4
D Deleted member 4993 Guest Sep 2, 2013 #2 mooch said: if sin θ+sin^2 θ+ sin^3 θ = 1 prove that cos ^6 θ - 4 cos ^4 θ 8 cos^2 θ = 4 Click to expand... What is that 8 doing there? Please share your work with us . If you are stuck at the beginning tell us and we'll start with the definitions. You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL: http://www.freemathhelp.com/forum/th...217#post322217
mooch said: if sin θ+sin^2 θ+ sin^3 θ = 1 prove that cos ^6 θ - 4 cos ^4 θ 8 cos^2 θ = 4 Click to expand... What is that 8 doing there? Please share your work with us . If you are stuck at the beginning tell us and we'll start with the definitions. You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL: http://www.freemathhelp.com/forum/th...217#post322217