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)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-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

If 8sin^(3)xsin3xsin3x=sum_(r=0)^(n)a^(r)cosrx is an identity in x, then n=

Let sin^(3)x* sin 3x = sum_(m=0)^(n) c_m cos mx be an identity in x where c_1, c_2 , etc., are constants, c_n ne 0 . Then n=______, c_5 =_____.

If sin^(3)x sin3x=sum_(n=0)^(6)c_(n)cos^(n)x where c_(0),c_(1),c_(2),...c_(6) are constants.then find the value of c_(4)

If x=sum_(n=0)^oo a^n, y=sum_(n=0)^oo b^n, z=sum_(n=0)^oo c^n where a,b,c are in A.P and |a|<1, |b<1, |c|<1, then x,y,z are in

What is C_0 + C_1 +…………..+C_n in (1+x)^n