If x is an acute angle and `sin (x + 28^(@))=cos (3x - 78^(@))`, then x =

If x acute angle and sin(x + 10^(@)) = cos (3x - 68^(@)) then find x in degree.

If sin(x+28^(@))=cos(3x-78^(@)) then x=

If x lt 90^(@) and sin(x + 28^(@)) = cos(3x - 78^(@)) , then find x

If x is acute and sin(x+10^(@))=cos(3x-68^(@)) then find x .

If both the angles are acute and sin(3x+20^(@))=cos(2x-40^(@)) , find x

If x,y are positive acute angles, x+ylt90^(@) and sin(2x-20^(@))=cos(2y+20^(@)) , then value of sec(x+y) is,

If x , y are acute angles , 0ltx+ylt90^(@)and sin(2x-20^(@))=cos(2y+20^(@)) , then the value of tan (x+y) is :

If cos x = (12)/( 13) and x is an acute angle, then sqrt((1 + (sin x)/(cos x))( 1- tan x)) is