If `0ltbetaltalphaltpi/ 4` and `cos(alpha+beta)=3/5`, `cos(alpha-beta)=4/5` then `sin2alpha`=

If 0 lt beta lt alpha lt pi//4, cos(alpha+beta)=3//5 and cos(alpha-beta)=4//5 , then evaluate sin 2alpha .

If 0 lt beta lt alpha lt pi//4, cos(alpha+beta)=3//5 and cos(alpha-beta)=4//5 , then evaluate sin 2alpha .

If 0 lt beta lt alpha lt pi//4, cos(alpha+beta)=3//5 and cos(alpha-beta)=4//5 , then evaluate sin 2alpha .

If 0ltbetalt(pi)/(4),cos(alpha+beta)=(3)/(5) andcos(alpha-beta)=(4)/(5) , then sin 2alpha is equal to

If 0 lt beta lt alpha lt gamma and cos(alpha + beta) = 4/5 , sin(alpha - beta)= 5/13 then tan 2alpha =________

If 0

If 0 lt alpha , beta lt pi//4, cos ( alpha + beta )=4//5 , sin (alpha - beta) =5//13 " then " tan 2alpha =