If (m²+n²) sin=2mn then prove that (m²+n²)cos =(m²-n²)​

Which statement is true? the given sides and angles cannot be used to show similarity by either the sss or sas similarity theorems. the given sides and angles can be used to show similarity by the sss similarity theorem only. the given sides and angles can be used to show similarity by the sas similarity theorem only. the given sides and angles can be used to show similarity by both the sss and sas similarity theorems.

What does independent variable and dependent variable mean in math?

Find the distance between the pair of points a(-1,8) and b(-8,4)