Solution of chapter trigonometry function class 11 ex 3.3
Question
In statistic how to know which method of mean is to be used for which some.
In triangle locate a point in its interior which is equidistant from all the sides ofthe triangle.
Let a be a nonsingular square matrix of order 3 cross 3 then mod adjoint a is equal to dash
Side QR of triangle PQR is produced to a point S as shown in the figure. The bisector of P meets QR at T. Prove that ∠PQR + ∠PRS = 2 ∠PTR