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Стр. lxxxi
... angle which the rays makes with a normal to the surface . 7. Prove that the image formed by reflexion from a plane mirror appears to be as far behind the mirror as the object is in front of it . Draw a diagram showing the number of ...
... angle which the rays makes with a normal to the surface . 7. Prove that the image formed by reflexion from a plane mirror appears to be as far behind the mirror as the object is in front of it . Draw a diagram showing the number of ...
Стр. xcix
... angles meet the sides AC , AB ; prove that BC2 - AB , BF AC , CE . 2. The opposite angles of any quadrilateral figure inscribed in a circle are together equal to two right angles . Two circles intersect in A , B ; PAP ' , QBQ ' are ...
... angles meet the sides AC , AB ; prove that BC2 - AB , BF AC , CE . 2. The opposite angles of any quadrilateral figure inscribed in a circle are together equal to two right angles . Two circles intersect in A , B ; PAP ' , QBQ ' are ...
Стр. c
... angle . Show that cos ( 180 ° - A ) = cos A , sin ( 90 ° + A ) · = cos A. Determine the values of sin 675 ° , sin ... angle is isosceles . 4. The sides of a triangle are 1717 , 1919 , 2424 ; find the angle opposite to 1919 Given- log ...
... angle . Show that cos ( 180 ° - A ) = cos A , sin ( 90 ° + A ) · = cos A. Determine the values of sin 675 ° , sin ... angle is isosceles . 4. The sides of a triangle are 1717 , 1919 , 2424 ; find the angle opposite to 1919 Given- log ...
Стр. cii
... angle to the horizon . Two heavy particles are projected from a point with equal velo- cities , their directions of projection being in the same vertical plane ; t , t ' are the times taken by the particles to reach the other point ...
... angle to the horizon . Two heavy particles are projected from a point with equal velo- cities , their directions of projection being in the same vertical plane ; t , t ' are the times taken by the particles to reach the other point ...
Стр. civ
... angle ? If a ray of light be refracted through a prism , the angle of in- cidence being given , prove from the law of refraction that the de- viation increases with the angle of the prism . What is the limit of the angle of the prism ...
... angle ? If a ray of light be refracted through a prism , the angle of in- cidence being given , prove from the law of refraction that the de- viation increases with the angle of the prism . What is the limit of the angle of the prism ...
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