If ` p = cos 2alpha + i sin 2alpha` , q = ` cos 2beta + i sin 2beta` then the value of `sqrt(p/q) - sqrt(q/p)`=

If p=cos2 alpha-i sin2 alpha,q=cos2 beta+i sin2 beta then the value of sqrt((p)/(q))-sqrt((q)/(p))

If p=cos2alpha+isin2alpha,q=cos2beta+isin2beta" then "sqrt(p//q)-sqrt(q//p)

If p=cos2 alpha+isin2 alpha,q=cos2beta+isin2beta then sqrt(p//q)-sqrt(q//p)=

If a = cos 2alpha + i sin 2 alpha, b = cos 2 beta + i sin 2 beta and c = cos 2gamma + i sin 2 gamma . Prove that . sqrt(abc) + 1/(sqrt(abc)) = 2 cos (alpha + beta + gamma)

If cos alpha + cos 2alpha = p , sin alpha + sin 2alpha = q then eliminate alpha .

If a = cos 2 alpha + i sin 2 alpha , b= cos 2 beta + i sin 2 beta , c = cos 2 gamma + i sin 2 gamma and d = cos2 delta + i sin 2 delta then sqrt( abcd) + 1/sqrt( abcd) is :

If a = cos 2 alpha + i sin 2 alpha , b= cos 2 beta + i sin 2 beta , c = cos 2 gamma + i sin 2 gamma and d + cos2 delta + i sin 2 delta then sqrt( abcd) + 1/sqrt( abcd) is :

If cos alpha + cos beta = 0 = sin alpha + sin beta, then value of cos 2 alpha + cos 2 beta is

If cos^(2)alpha-sin^(2)alpha=tan^(2)beta , then the value of cos^(2)beta-sin^(2)beta is

The lines x cos alpha + y sin alpha = P_1 and x cos beta + y sin beta = P_2 will be perpendicular, if :