trgonometría en inglés

... The hypotenuse of △ABC has length 5. For angle A, the opposite side BC has length 3 and the adjacent side AC has length 4. Thus: sin A = opposite hypotenuse = 3 5 cos A = adjacent hypotenuse = 4 5 tan ... = opposite adjacent = 3 4 csc A = hypotenuse opposite = 5 3 sec A = hypotenuse adjacent = 5 4 cot A = adjacent opposite = 4 3 For angle B, the opposite side AC has length 4 and the adjacent...

Ngày tải lên: 30/05/2014, 13:29

... B 1 C 1 ; let Q be the center of face CC 1 D 1 D. Segment M N with the endpoints on lines AD and KL intersects line P Q and is perpendicular to it. Find the length of this segment. 2.36. The number ... perpendicular to the given edges is divided by the planes of the cube’s faces parallel to them into segments of length y, x and z, where x is the length of the cube ’s edge and y is the length...

Ngày tải lên: 30/05/2014, 13:25

... congruent to the sum of two non-re- entrant angles, when it is congruent to the sum of two adjacent angles, respec- tively congruent to them. Definition. Two angles congruent to two adjacent angles ... convenient to apply the categories, congruent greater and less, to segments, when these apply respectively to the distances of their extremities. We may similarly speak of the measure of a segme...

Ngày tải lên: 30/05/2014, 13:28

Ngày tải lên: 30/05/2014, 13:31

... tangent to the circle. 50. If a line is tangent to a circle, it is perpendicular to the radius drawn to the point of contact. 51. If in a proportion the antecedents are equal, then the consequents are ... two parallel lines, it is per- pendicular to the other also. 36. If two given lines are perpendicular respectively to each of two intersecting lines, then the given lines are not parallel. 3...

Ngày tải lên: 30/05/2014, 13:37

... line of intersection. Hence as K is arbi trary it (24) represents the planes containing the line of intersection of the two given planes. 42. When the identity KU + K^Uj + KaUs = o (30) exists between the equations U=o, U 2 o, U 3 = o of three planes, then ... themselves represent different sur faces. Interpretation of Polar Equations. 27. i. r = a represents a sphere having the pole for its...

Ngày tải lên: 30/05/2014, 13:45

... plus en plus exigeants… 4. Des inconvénients de publicité en ligne : ● Les internautes voyent souvent les trois premières pages La plupart des gens utilisent les moteurs de recherche en ligne ... publicité en ligne - Coût de la publicité en ligne au Vietnam est très bon marché, les ventes ne représentent que 1% des recettes totales de publicité en général Les ventes publicitair...

Ngày tải lên: 03/10/2012, 10:30

... depend on) - I can count on my parents to help me in an emergency. - Don't depend on Frank to lend you any money; he doesn't have any. to make friends (with): to become friendly ... far between: not frequent, unusual, rare - The times that our children get to stay up late are few and far between. - Airplane travel is very safe because accidents are few and far between. ......

Ngày tải lên: 03/10/2012, 15:11

... diode Zenner Để Zenner hoạt động trong vùng nghịch phải lớn hơn U z ( Uv > Uz ) U v = (1,2→2,5) Uz Thực tế : Uz = 3v,6v,7.5v,9v,12v,18v,15v,24v…. Chú ý : Khi phân cực thuận Zenner cũng ... hỗn hợp giữa hai nguyên tố thuộc nhóm 3 và nhóm 5 bảng tuần hoàn hóa học Mendeleep) . Ví dụ :Cds(sufit Cadmi)CdSe(Selenit Cadmi),ZnS… Kí hiệu : b/ Nguyên lí hoạt động : Quang điện trở ... ,...

Ngày tải lên: 12/10/2012, 14:42

... manifold by running the engine at 3000 rpm for approximately 15 seconds, then allow the engine to idle. 44 Wait for the test instrument readings to stabilise, then record the CO content and the idle ... or flat bar, check for wear in the suspension mounting bushes by levering between the relevant suspension component and its attachment point. Some movement is to be expected as the mountings a...

Ngày tải lên: 22/10/2012, 10:30