cos(x)=0 aolve for x
1wy -1y-1+1w
cos(kl)=0 solve for kl
cos(kl)=0 solve for k
Prove that points (4, 3), (7, -1) and (9, 3) are the vertices of an isoscales triangle.
25t-1/15 t^(5/2)=200
det the value of x in the following with reasons proportionality
1+2=
convert 2/3 pie to degree
