If `cosx=3/5` and `cosy=-24/25` , where `(3pi)/2

if cos x=(3)/(5) " and cos " y=(-24)/(25) " where " .(3pi)/(2) lt x lt 2 pi " and " pi lt y lt .(3pi)/(2) find the values of (i) " sin (x+y) "" ""(ii) cos (x-y) "" ""(iii) tan (x+y) "

If cosA=-24/25 and cos B=3/5 where pi < A < (3pi)/2 and (3pi)/2 < B < 2pi then find sin(A+B)

If cosA=-24/25 and cos B=3/5 where pi < A < (3pi)/2 and (3pi)/2 < B < 2pi then find cos(A+B)

If cosA=-24/25 and cos B=3/5 where pi < A < (3pi)/2 and (3pi)/2 < B < 2pi then find sin(A+B)

If cosA=-24/25 and cos B=3/5 where pi < A < (3pi)/2 and (3pi)/2 < B < 2pi then find cos(A+B)

If cosA= - (24)/(25) and cosB=3/5 where piltAlt(3pi)/2 and (3pi)/2ltBlt2pi , find the value of sin(A+B)

if sinx=3/5 , cosy= -12/13 where pi/2ltxlt pi and pi/2ltyltpi then show that sin(x+y) =-56/65

If cosx=(2cosy-1)/(2-cosy) , where x,y in(0,pi) , then "tan"(x)/(2)"cot"(y)/(2) is equal to

Simplify each of the following: cos^(-1)(3/5cosx+4/5sinx) , where -(3pi)/4lt=xlt=pi/4 sin^(-1)(5/(13)cosx+(12)/(13)sinx)

Simplify each of the following: cos^(-1)(3/5cosx+4/5sinx) , where -(3pi)/4lt=xlt=pi/4