" 19.If "alpha=^(m)C_(2)," then find the value of "^(alpha)C_(2)" ."

If alpha=\ \ ^m C_2,\ then find the value of \ ^(alpha)C_2dot

If alpha=\ \ ^4 C_2,\ then find the value of \ ^(alpha)C_2dot

If alpha=(pi)/(7), then find the value of ((1)/(cos alpha)+(2cos alpha)/(cos2 alpha))

If alpha=(pi)/(7) then find the value of ((1)/(cos alpha)+(2cos alpha)/(cos2 alpha))

If alpha is nonreal and alpha=(1)^((1)/(5)) then the find the value of 2^(|1+alpha+alpha^(2)+alpha^(-2)-alpha^(-2))-alpha^(-1)|

If alpha and beta are roots of ax^(2) + bx + c = 0 , then find the value of a((alpha^(2) + beta^(2))/(beta alpha)) + b((alpha)/(beta) + (beta)/(alpha))

If alpha is nonreal and alpha= (1)^(1/5) then the find the value of 2^(|1+alpha+alpha^2+alpha^-2-alpha^-1|)

If f(alpha) = |{:(1,alpha,alpha^2),(alpha,alpha^2,1),(alpha^2,1,alpha):}| , then find the value of f(3^(1/3)) .

If sec^(2)alpha+cos^(2)alpha=2 , then find the value of sec alpha+ cos alpha .