Question

(Cos×cos)15+(cos×cos)45+(cos×cos)
125

Answer 1

Answer:

did you mean Cos^2 135 in last term ? if so answer follows.pls ( 6 + sqroot 3)/ 4

Step-by-step explanation:

as ahown above

Answer 2

Step-by-step explanation:

Sublimation is the transition of a substance directly from the solid to the gas state, without passing through the liquid state.