If `alpha,beta in (0, pi/2), sinalpha=4/5` and `cos(alpha+beta)=12/13` then `sin beta=`

If alpha,betain(0,(pi)/(2)),sinalpha=(4)/(5)and cos(alpha+beta)=-(12)/(13) , then sin beta is equal to

If alpha , beta in (0,pi/2), sin alpha =4/5 and cos ( alpha + beta) = ( -12)/(13) then sin beta is equal to

If alpha, beta in (0, (pi)/(2)), sin alpha = (4)/(5) and cos (alpha + beta) = -(12)/(13) , then sin beta is equal to

If alpha, beta in (0, (pi)/(2)), sin alpha = (4)/(5) " and " cos (alpha + beta) = - (12)/(13), then the value of sin beta is

If sinalpha+sin beta=a and cos alpha+cos beta=b,then sin(alpha+beta)=

If alpha and beta be between 0 and (pi)/(2) and if cos (alpha+beta)=(12)/(13) and sin (alpha-beta)=(3)/(5), then sin 2 alpha is equal to

If alpha and beta be between 0 and (pi)/(2)and if cos(alpha+beta)=(12)/(13) and sin(alpha-beta)=3/5, then sin 2 alpha is equal to