Suppose `sin^3xsin3x=sum_(m=0)^n C_mcosm x` is an identity in `x ,` where `C_0,C_1 ,C_n` are constants and `C_n!=0,` the the value of `n` is ________

Suppose sin^(3)x sin3x=sum_(m=0)^(n)C_(m)cos mx is an identity in x, where C_(0),C_(1)...,C_(n) are constants and C_(n)!=0, the the value of n is

Suppose sin^(3)x sin3x=sum_(m=0)^(n) C_(m) cos mx is an idedntity in x , where C_(0),….C_(n) are constant and C_(n)ne0 then the value of n is ___________

Suppose sin^(3)xsin3x= sum_(n=0)^(n) c_(n)cosnx is an identify in n, where C_(0), C_(1) , …..C_(n) are constants and C_(n) ne 0, Then , the value of n is ___________.

If sin ^(3) x sin 3x= sum _(m=0)^(n) c_(m) cos mx is an identity in x, where C_(0), C_(1),C_(2),…,C_(n) are constants and C_(n) ne 0, then the value of n is equal to-

Suppose sin^(3)x sin3x=underset(m=0)overset(n)sumC_(m) cos mx is an identity in x , where C_(0),….C_(n) are constant and C_(n)ne0 then the value of n is ___________

If 8sin^(3)xsin3x=sum_(r=0)^(n)a^(r)cosrx is an identity in x, then n=

if sin^(3)x-sin3x=sum_(m=0rarr n)c_(m)*cos mx is an identity in x, where c_(m)^(=0rarr n) are constant then the value of n is