Treatise on Trigonometry ...Macmillen & Company, 1889 - 504 páginas |
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Página 4
... Observe that a complete revolution = 4 right angles = 360 ° , and that half a complete revolution = 2 right angles = 180o . The student must be careful to avoid confusing the three dif- ferent uses of the words minute and second . The ...
... Observe that a complete revolution = 4 right angles = 360 ° , and that half a complete revolution = 2 right angles = 180o . The student must be careful to avoid confusing the three dif- ferent uses of the words minute and second . The ...
Página 5
... observation & c . angles are expressed in terms of the sexagesimal subdivisions of the right - angle . The immense labour which would be in- volved in reducing these to the centesimal system has not yet been undertaken . Hence the ...
... observation & c . angles are expressed in terms of the sexagesimal subdivisions of the right - angle . The immense labour which would be in- volved in reducing these to the centesimal system has not yet been undertaken . Hence the ...
Página 8
... observe that to speak of an angle as being in a certain Quadrant is misleading : it is the revolving line which passes through the several Quadrants , and whose final position in one or other of the Quadrants indicates the magnitude of ...
... observe that to speak of an angle as being in a certain Quadrant is misleading : it is the revolving line which passes through the several Quadrants , and whose final position in one or other of the Quadrants indicates the magnitude of ...
Página 9
... observe that an area is measured by the product of two numbers which measure lengths . This is expressed by saying that area is of the second dimen- sion in length . 21. The conclusion of Art . 19 may be expressed more briefly thus ...
... observe that an area is measured by the product of two numbers which measure lengths . This is expressed by saying that area is of the second dimen- sion in length . 21. The conclusion of Art . 19 may be expressed more briefly thus ...
Página 26
... observe that , since π is the ratio of one length to another length , is an abstract number : and since the ratio of the circumference to the diameter is con- stant , is of constant magnitude . Also , since the angle , which at the ...
... observe that , since π is the ratio of one length to another length , is an abstract number : and since the ratio of the circumference to the diameter is con- stant , is of constant magnitude . Also , since the angle , which at the ...
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Términos y frases comunes
acute angle algebraically angle AOB antiparallel base bisector bisects Brocard Brocard Circle Brocard Points centre chord circular measure circumcircle circumference circumradius convergent cos² cos³ cosec cosh cosine cot² cotangent decimal diameter difference directed length equal equation escribed circles Example expressed factors figure final line finite formulæ greater Hence hypothenuse inscribed integral last article Lemoine Circle logarithms magnitude middle point multiple negative nine-points circle obtuse opposite perp perpendicular positive PROP prove quadrant quantity radian radii radius ratios respectively revolver right-angled triangle S₁ sec² secant sector sides sin² sin³ sine sinh subtend subtraction tan-¹ tan² tangent theorem trigonometrical angle values zero
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