a) 1-cos(x)^2
sin(x)^2
cos(x)^2+sin(x)^2-2sin(x)cos(x)
cos(x)^2-2sin(x)cos(x)+sin(x)^2
(cos(x)-sin(x))^2
б)ПО ФОРМУЛАМ: cos(x)^2-sin(x)^2 либо 1-2sin(x)^2 либо 2cos(x)^2-1
a) 1-cos(x)^2
sin(x)^2
cos(x)^2+sin(x)^2-2sin(x)cos(x)
cos(x)^2-2sin(x)cos(x)+sin(x)^2
(cos(x)-sin(x))^2
б)ПО ФОРМУЛАМ: cos(x)^2-sin(x)^2 либо 1-2sin(x)^2 либо 2cos(x)^2-1