Plane Trigonometry and TablesGinn, 1914 - 314 páginas |
Dentro del libro
Resultados 1-5 de 40
Página
... show its value , but it is recognized that this topic has , as yet , only a subordinate place . It seems probable that the decimal frac- tion will in due time supplant the sexagesimal here as it has in other fields of science , and ...
... show its value , but it is recognized that this topic has , as yet , only a subordinate place . It seems probable that the decimal frac- tion will in due time supplant the sexagesimal here as it has in other fields of science , and ...
Página 5
... Show that in the right triangle ACB ( § 7 ) the following relations exist : sin A = cos B , cos A = sin B , - tan A cot B , cot A = tan B , sec A = csc B , csc A sec B. State which of the following is the greater : 3. sin A or tan A. 5 ...
... Show that in the right triangle ACB ( § 7 ) the following relations exist : sin A = cos B , cos A = sin B , - tan A cot B , cot A = tan B , sec A = csc B , csc A sec B. State which of the following is the greater : 3. sin A or tan A. 5 ...
Página 12
... show that the ratio of sin 20 ° csc 20 ° to tan 50 ° cot 50 ° is 1 . 11. Similarly , show that cos 40 ° sec 40 ° : tan 70 ° cot 70 ° = 1 . In the right triangle ACB , as shown in § 7 : = 12. Find the length of side a if A = 13. Find the ...
... show that the ratio of sin 20 ° csc 20 ° to tan 50 ° cot 50 ° is 1 . 11. Similarly , show that cos 40 ° sec 40 ° : tan 70 ° cot 70 ° = 1 . In the right triangle ACB , as shown in § 7 : = 12. Find the length of side a if A = 13. Find the ...
Página 24
... Show that the sine of an angle is equal to one half the chord of twice the angle in a unit circle . 16. Find x if ... Show by construction that 2 sin A > sin 2 A , when A < 45 ° . 33. Show by construction that cos A < 2 cos 2 A , when A ...
... Show that the sine of an angle is equal to one half the chord of twice the angle in a unit circle . 16. Find x if ... Show by construction that 2 sin A > sin 2 A , when A < 45 ° . 33. Show by construction that cos A < 2 cos 2 A , when A ...
Página 26
... show this . Draw a figure to show this . Draw a figure to show this . 2. What is the value of cos 90 ° ? Draw a figure to show this . 3. What is the value of sec 0 ° ? 4. What is the value of tan 90 ° ? 5. What is the value of cot 90 ...
... show this . Draw a figure to show this . Draw a figure to show this . 2. What is the value of cos 90 ° ? Draw a figure to show this . 3. What is the value of sec 0 ° ? 4. What is the value of tan 90 ° ? 5. What is the value of cot 90 ...
Otras ediciones - Ver todas
Términos y frases comunes
9 log absolute value acute angle angle of depression angle of elevation antilogarithm base characteristic circle colog cologarithm computation cos(x cos² cos²x cosecant cosine cot log cotangent cotx decimal places degree diameter divided equation example Exercise Find log Find the antilogarithm Find the area Find the distance Find the height Find the length Find the number Find the value formula given number given the following graph Hence horizontal hypotenuse included angle integers interpolation isosceles triangle Law of Cosines Law of Sines Law of Tangents log cos log log cot 9 log sin log logarithm longitude mantissa multiply negative plane polygon positive quadrant radians radius right triangle roots secant secx sexagesimal ship sails sin log cos sin(x sin² sin²x Solve subtends subtract tabular difference tangent triangle ABC trigonometry whence
Pasajes populares
Página 99 - EXERCI8E XII. 1. What do the formulas of § 36 become when one of the angles is a right angle ? 2. Prove by means of the Law of Sines that the bisector of an angle of a triangle divides the opposite side into parts proportional to the adjacent sides.
Página 43 - The logarithm of a quotient is equal to the logarithm of the dividend minus the logarithm of the divisor.
Página 43 - If the number is less than 1, make the characteristic of the logarithm negative, and one unit more than the number of zeros between the decimal point and the first significant figure of the given number.
Página 98 - The sides of a triangle are proportional to the sines of the opposite angles.
Página 47 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Página 141 - Equation 3, we see that an angle of 1 rad is the angle subtended at the center of a circle by an arc equal in length to the radius of the circle (see Figure 2).
Página 41 - The logarithm of the product of two numbers is equal to the sum of the logarithms of the numbers.
Página 118 - I label the two new points e and /." FIG. 2 With the help of this figure he then proceeds to the usual proof of the theorem that the area of a parallelogram is equal to the product of the base by the altitude, establishing the equality of certain lines and angles and the congruence of the pair of triangles.
Página 59 - From the top of a hill the angles of depression of two objects situated in the...
Página 21 - The logarithm of the reciprocal of a number is called the Cologarithm of the number.