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Din interiorul cărții
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... tangents from any point to the same circle are equal . ( b ) Two circles touch at A , and are touched by a common tangent at B and C. Then BAC is a right - angle . 4. If r ' , r ' ' , r ' ' be the radii of the excircles of a tri- angle ...
... tangents from any point to the same circle are equal . ( b ) Two circles touch at A , and are touched by a common tangent at B and C. Then BAC is a right - angle . 4. If r ' , r ' ' , r ' ' be the radii of the excircles of a tri- angle ...
Pagina
... tangent of the angle which an edge makes with a base . 13. Show how to find the volume of a truncated triangu- lar prism , or wedge . C. 14. ( a ) Given sin 0 = 1 , find cos 0 , tan 6 , and sec 0 . ( b ) If sin @ = sin ( " + y ) = 1 ...
... tangent of the angle which an edge makes with a base . 13. Show how to find the volume of a truncated triangu- lar prism , or wedge . C. 14. ( a ) Given sin 0 = 1 , find cos 0 , tan 6 , and sec 0 . ( b ) If sin @ = sin ( " + y ) = 1 ...
Pagina
... tangents form a harmonic system to a circle , each tangent is divided harmonically by its point of contact , and its ... tangent to the rectangle on their diam- eters is unchanged . 10. State the polar reciprocal of the following : -The ...
... tangents form a harmonic system to a circle , each tangent is divided harmonically by its point of contact , and its ... tangent to the rectangle on their diam- eters is unchanged . 10. State the polar reciprocal of the following : -The ...
Pagina
... tangents form a harmonic system to a circle , each tangent is divided harmonically by its point of contact , and its points of intersection with the other tangents . 8. When two circles are inverted the ratio of the square on their common ...
... tangents form a harmonic system to a circle , each tangent is divided harmonically by its point of contact , and its points of intersection with the other tangents . 8. When two circles are inverted the ratio of the square on their common ...
Pagina
... tangent . 3. If sin a cos a = 12 25 ' find tan a , and cot a . 4. ( a ) Prove that cos ( A - B ) = cos A cosB + sin A sin B. ( b ) From ( a ) deduce expression for cos 24 , sin 2A , and tan 24 . 5. ( a ) Find cos 3x in terms of cosa and ...
... tangent . 3. If sin a cos a = 12 25 ' find tan a , and cot a . 4. ( a ) Prove that cos ( A - B ) = cos A cosB + sin A sin B. ( b ) From ( a ) deduce expression for cos 24 , sin 2A , and tan 24 . 5. ( a ) Find cos 3x in terms of cosa and ...
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