Maths Yadi A cos θ + B sin θ = 8 Tatha A sin θ - B cos θ = 5 Ho To (a& # 178 ; + b& # 178 ;) = ?

यदि a cos θ + b sin θ = 8 तथा a sin θ - b cos θ = 5 हो तो (a² + b²) = ? - - Yadi A cos θ + B sin θ = 8 Tatha A sin θ - B cos θ = 5 Ho To (a& # 178 ; + b& # 178 ;) = ?  Maths in hindi,  trigonometry  40 question answers in hindi pdf   89 questions in hindi, Know About 13 Maths online test Maths notes in hindi quiz book     39