(1+ cos 2 alpha + sin 2 alpha)/(1-cos 2 alpha +sin 2 alpha)=cot alpha Math traditions 235 подписчиков Скачать
Construct a parallelogram diagonal AC=6.4cm ,diagonal BD = 5 .6cm and angle between the diagonals75° Скачать
Construct a quadrilateral AB = 8 cm, BC = 6.5cm, AD = 6cm angle A = 60 deg and angle B = 75 deg . Скачать
Draw a line segment PQ = 6cm Mark apoint A in PQ so that AP = 2cm,At point A construct ∠QAR = 120°. Скачать
