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

If sinx=3/5 , cosy=-12/13 , where x and y both lie in second quadrant, find the value of sin(x+y).

If 13 sin A = 12 , pi//2 lt A lt pi and 3 sec B=5 , 3pi/2 lt B lt 2pi " then " 5 tan A+ 3tan^(2) 8 =

If sinx=3/5,cosy=-(12)/(13), where x and y both lie in second quadrant, find the value of sin (x + y)dot

If sinx=(3)/(5),cosy=-(12)/(13) , where x and y both lie in second quadrant, find the value of sin(x+y) .

If sin x=(12)/(13) "and sin " y= (4)/(5) " where " (pi)/(2) lt x lt pi " and " 0 lt y lt .(pi)/(2) find the values of (i) " sin " (x+y) " "(ii) " cos " (x+y) " "(iii) " tan " (x-y)

If 1 + sin x+ sin^2 x +.... up to oo=4+2 sqrt3, 0ltxlt pi and x ne pi/2 , then x=

If y=(sinx-cosx)^(sinx-cosx) , pi/4 ltxlt (3pi)/ 4 find dy/dx

If y=(sinx-cosx)^(sinx-cosx) , pi/4 ltxlt (3pi)/ 4 find dy/dx