A) Simplifying the given expression: sin(2a) cos(2a) ctg(2a) - 1 2sin(a)cos(a) 1/sin(2a) - 1 2sin(a)cos(a) 1/(2sin(a)cos(a)) - 1 1 - 1 0
Therefore, the simplified expression is 0.
B) tga/cigarette + 1 is not a valid mathematical expression as "cigarette" is not a recognized mathematical operation. Please provide a correct expression for further evaluation.
A) Simplifying the given expression:
sin(2a) cos(2a) ctg(2a) - 1
2sin(a)cos(a) 1/sin(2a) - 1
2sin(a)cos(a) 1/(2sin(a)cos(a)) - 1
1 - 1
0
Therefore, the simplified expression is 0.
B) tga/cigarette + 1 is not a valid mathematical expression as "cigarette" is not a recognized mathematical operation. Please provide a correct expression for further evaluation.