Hello, Malsha!

Could that be: .2) Prove that: cos⁻¹x-sin⁻¹x= π/6This is not true!

That is: .

We have: .

Hence, the two angles are in this triangle.Code:* * β* 1 * * * * * * * α * * * * * * * * x

And we see that the two angles arecomplementary: .

So theirsumis a constant, butnottheirdifference.