Q. यदि a cos θ + b sin θ = 8 तथा a sin θ - b cos θ = 5 हो तो (a² + b²) = ?

Math question with Easy calculation

Q.2450 : यदि a cos θ + b sin θ = 8 तथा a sin θ - b cos θ = 5 हो तो (a² + b²) = ?

Right Ans : 89