Simplify sqrt(a^2-(a*sinx)^2)
√a2−(asinθ)2
√a2−[a⋅sin(x)]2=√a2−a2⋅sin2(x)√a2−[a⋅sin(x)]2=√a2⋅[1−sin2(x)]sin2(x)+cos2(x)=1 or cos2(x)=1−sin2(x)√a2−[a⋅sin(x)]2=√a2⋅cos2(x)√a2−[a⋅sin(x)]2=a⋅cos(x)
