Elements of Geometry: Containing the First Six Books of Euclid, with a Supplement on the Quadrature of the Circle and the Geometry of Solids; to which are Added Elements of Plane and Spherical TrigonometryW. E. Dean, 1840 - 317 sider |
Inni boken
Resultat 1-5 av 24
Side 220
... Cosine , Cotangent , or Cosecant of that angle . Thus , let CL or DB , which is equal to CL , be the sine of the angle CBH ; HK the tangent , and BK the secant of the same angle : CL or BD is the cosine , HK the cotangent , and BK the ...
... Cosine , Cotangent , or Cosecant of that angle . Thus , let CL or DB , which is equal to CL , be the sine of the angle CBH ; HK the tangent , and BK the secant of the same angle : CL or BD is the cosine , HK the cotangent , and BK the ...
Side 222
... sum of the sines of the arcs AB and AC ; and KC is the difference of the sines ; also BD is the sum of the arcs AB and AC , and BC the diffe- rence of those arcs COR . 1. Because EL is the cosine of AC 222 PLANE TRIGONOMETRY .
... sum of the sines of the arcs AB and AC ; and KC is the difference of the sines ; also BD is the sum of the arcs AB and AC , and BC the diffe- rence of those arcs COR . 1. Because EL is the cosine of AC 222 PLANE TRIGONOMETRY .
Side 223
... cosine of AC , and EH of AB , FK is the sum of these cosines , and KB their difference ; for FK = 3FB + EL = EH + EL , and KB ÷ LH = EH - EL . Now , FK : KB :: tan . FDK : tan . BDK ; and tan . DFK = cotan . FDK , because DFK is the ...
... cosine of AC , and EH of AB , FK is the sum of these cosines , and KB their difference ; for FK = 3FB + EL = EH + EL , and KB ÷ LH = EH - EL . Now , FK : KB :: tan . FDK : tan . BDK ; and tan . DFK = cotan . FDK , because DFK is the ...
Side 225
... cosine of the angle included by the two sides . Let ABC be any triangle , 2AB.BC is to the difference between AB2 + BC2 and AC2 as radius to cos . B. From A draw AD perpendicular to BC , and ( 12. and 13. 2. ) the difference be- tween ...
... cosine of the angle included by the two sides . Let ABC be any triangle , 2AB.BC is to the difference between AB2 + BC2 and AC2 as radius to cos . B. From A draw AD perpendicular to BC , and ( 12. and 13. 2. ) the difference be- tween ...
Side 227
... cosine of half the angle included between the two sides of the triangle . Let ABC be a triangle , of which BC is the base , and AB the greater of the other two sides , 4AB.AC : ( AB + AC + BC ) ( AB + AC - BČ ) :: R2 : ( cos . RAC ) 2 ...
... cosine of half the angle included between the two sides of the triangle . Let ABC be a triangle , of which BC is the base , and AB the greater of the other two sides , 4AB.AC : ( AB + AC + BC ) ( AB + AC - BČ ) :: R2 : ( cos . RAC ) 2 ...
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Vanlige uttrykk og setninger
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