Cos(x-pi/3)+sin(pi/6-x)=cosx
prove the identity

Radii ok and nl are perpendicular to om because of the radius-tangent theorem. by definition of perpendicular, angles kom and lnm are right angles. this means that triangles kom and lnm are right triangles. angle lmn is common to both right triangles, so by the triangles kom and lnm are similar.

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5