cos A=(5)/(13),tan B=-(15)/(8)" then "sin(A+B)=

If 270^(@) lt A lt 360^(@), 90^(@) lt B lt 180^(@) , cos A =5//13 , tan B=-15//8 " then " cos (A+B)=

If cos A = (5)/(13), Tan - (-15)/(8) and A and B are angles in the fourth quadrant and the second quadrant respectively then find sin (A + B) and cos (A + B). Also determine the quadrant to which the angle (A + B) relates.

If 0 lt A, B lt 90^(@), cos A= (5)/(13) and sin B =(4)/(5) then find sin (A+B) .

cos A = (5) / (13), tan B = - (15) / (8), 270 ^ (@)

If cos A =(5)/(13) , and sin B=(4)/(5) , find sin (A+B), where A,B,(A+B) are positive acute angles.

If A>0^@ , B<90^@ , such that cos A=(5)/(13) and sin B=(4)/(5) , then the value of sin(A-B)

If cos(A-B)=(5)/(13) and sin(A+B)=(4)/(5) , then find sin2B.

If (sin A)/(sin B)=(sqrt(3))/(2) and (cos A)/(cos B)=(sqrt(5))/(2) then tan A+tan B is equal to

If cos A=5/13 and sin B= 4/5 , find sin (A + B), where A, B, (A + B) are positive acute angles.