if `A=[[a,b],[b,a]]` and `A^2 =[[alpha,beta],[beta,alpha]]` then

If sin alpha+sin beta=a and cos alpha+cos beta=b then tan((alpha-beta)/(2)) is equal to

If sin alpha+sin beta=a and cos alpha-cos beta=b then tan((alpha-beta)/(2))=

If s in alpha+s in beta=a and cos alpha-cos beta=b then (tan(alpha-beta))/(2)=-(a)/(b) b.(b)/(a) c.sqrt(a^(2)+b^(2)) d.none of these

Prove that |[alpha,beta,gamma] ,[alpha^2,beta^2,gamma^2] , [beta+gamma, gamma+alpha, beta+alpha]| = (alpha-beta)(beta-gamma)(gamma-alpha)(alpha+beta+gamma)

If tan (alpha+beta)=a+b and tan(alpha-beta)=a-b,thenshowtâtan alpha-b tan beta=a^(2)