Class XI &XII Maths Trigonometry Proof of Sin(90º+θ)=Cosθ//Cos(90º+θ)=-Sinθ and tan(90º+θ)=-Cotθ

In this vedio students will study about the proof of Sin(90º+θ)=Cos // Cos(90º+θ)=-Sinθ and so. Mathematics world Suresh channel provides you all NCERT Maths Class 11 and 12th Solutions vedios. It will help the students to score good marks in annual board examinations and other competitive examinations.