a) Show that \( 2 \left( a \sin^2 \frac{C}{2} + c \sin^2 \frac{A}{2} \right) \) is less than the perimeter of $\Delta ABC$ . b) The condition of a…
Class 12 Mathematics · 2081 · Solved Question with Answer
a) Show that \( 2 \left( a \sin^2 \frac{C}{2} + c \sin^2 \frac{A}{2} \right) \) is less than the perimeter of $\Delta ABC$.
b) The condition of a straight line y = mx + c to a circle \( x^2 + y^2 = a^2 \) is \( c^2 = a^2(1 + m^2) \). Justify it with an example.