" 4.Iel "z=cos theta+i sin theta." Then,the value of "sum_(m=1)^(15)lm(z^(2m-1))" at "0=2^(@)" is "

Let z=cos theta+i sin theta then the value of sum_(m=1)^(30)Im(z^(2m-1)) at theta=2^(@) is.

Let z=cos theta+isintheta . Then the value of sum_(m-1)^(15)Im(z^(2m)-1) at theta=2^(@) is

Let z=costheta +i sintheta . Then, the value of sum_(m=1)^15Imz^(2m-1) at theta = 2^@ is

Let z=costheta+isintheta . Then the value of sum_(m=1)^15 Im(z^(2m-1)) at theta=2^@ is:

Let z=cos theta+i sin theta. Then the value of sum_(m rarr1-15)Img(z^(2m-1)) at theta=2^(@) is: 1.(1)/(sin2^(@)) 2.(1)/(3sin2^(@))3*(1)/(sin2^(@))4*(1)/(4sin2^(@))

Let z=costheta+isintheta . Then the value of sum_(m->1-15)Img(z^(2m-1)) at theta=2^@ is:

Let z=costheta+isintheta . Then the value of sum_(m->1-15)Img(z^(2m-1)) at theta=2^@ is:

If z = 1 - cos theta + i sin theta , then |z| =