If the expression `cos(x - 3pi/2) + sin(3pi/2+x) + sin(32pi+x) - 18 cos(19pi-x)+cos(56pi+x) - sin(x+17pi)` is expressed in the form of `a sinx + bcos x`, then a+b is equal to

If the expression cos(x - 3pi/2) + sin(3pi/2+x) + sin(32pi+x) - 18 cos(19pi-x)+cos(56pi+x) - 9sin(x+17pi) is expressed in the form of a sinx + bcos x , then a+b is equal to

If the expression cos(x-(3 pi)/(2))+sin g((3 pi)/(2)+x)+sin(32 pi+x)-18cos(19 pi-x)+cos(56 pi+x)-9sin(x+17 pi) is expressed in the form of a s in x+b cos x, then (a+b) is equal to 17 (b) 27(c)13 (d) 23

cos(2pi -x) cos (-x) - sin(2pi +x) sin (-x) = 0

The value of the expression cos((pi)/(2)-x)cos((3 pi)/(2)+x)-cos(pi-x)cos(2 pi-x)

cos((3pi)/4+x)-sin(pi/4-x)=?

[sin ((pi) / (2) -x) + sin (pi-x)] ^ (2) + [(cos ((3 pi) / (2) -x) + cos (2 pi-x)] ^ (2) =

The expression (tan(x-pi/2)cos((3pi)/2+x)-sin^3((7pi)/2-x))/(cos(x-pi/2)tan((3pi)/2+x) is equal to

Period of sin""(3pi x)/(2) + cos""(pi x)/(2) is

sin(pi/3-x)cos(pi/6+x)+cos(pi/3-x)sin(pi/6+x)=1