[" 2.If "A,B" are acute angles."],[tan A=(5)/(12),cos B=(3)/(5)" then "cos(A+B)=]

If A,B are acute angle, tan A=5/12 , cos B=3/5 , then cos (A+B)=

If B,A+B are acute angles sin(A+B)=(12)/(13),sin B=(5)/(13) then sin A=

If A,B are acute angles and sinA = 3/5, cosB =12/13 then find cos(A+B)

If A and B are positive acute angles and cos A=(1)/(7),cos B=(13)/(14), then show that A-B=60^(@).

If A,B are acute angle , sin 4/5 , tan B=5/12 , then cos (A-B)=

If A, B are acute angles, sin A =4/5 , tan B=5/12 , then sin (A+B)=

If A,B,C are acute angles , tan A=1/2 , tan B=1//5 , tan C=1//8 , " then " A+B+C=

If B,A+B are acute angle , sin(A+B)=12/13, sin B=5/13 then sin A =

If A+B, A are acute angles such that sin (A+B)=(24)/(25) and tan A=(3)/(4) , then find the value of cos B .