Cos(A - B) = cos(A)cos(B) - sin(A)sin(B)
Thus,
cos(8x)cos(2x) - sin(8x)sin(2x)
= cos(8x - 2x)
= cos(6x)
Answer:
x = 51
58 and 71
Step-by-step explanation:
109 + x = 180
Subtract 109 from both sides
x = 71
Since it's opposite angles 58 = 58
71 + 58 + x = 180
129 + x = 180
Subtract 129 from both sides
x = 51
Answer: Polynomials are algebraic expressions that contain more than two terms. AN example would be: f(x) = x^3 + x^2 + x +1. This equation contains three terms, with the 3rd degree as its highest term. It also means that the graph passed three x-intercepts. This depends in the highest degree. So, the first thing you do is plot the intercepts because for sure, the graph will pass there.
Step-by-step explanation:
3x - 5 = g + x + 8
2x - 13 = g