Plane Trigonometry and TablesGinn, 1914 - 314 páginas |
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Página 9
... multiplied to equal tan 30 ° ? 44. By what must sec 45 ° be multiplied to equal ese 30 ° ? 45. By what must cos 45 ° be multiplied to equal tan 60 ° ? 46. By what must esc 60 ° be divided to equal tan 45 ° ? 47. By what must csc 30 ° be ...
... multiplied to equal tan 30 ° ? 44. By what must sec 45 ° be multiplied to equal ese 30 ° ? 45. By what must cos 45 ° be multiplied to equal tan 60 ° ? 46. By what must esc 60 ° be divided to equal tan 45 ° ? 47. By what must csc 30 ° be ...
Página 35
... multiplying each by 10,000 . Only part of the actual division is shown . Instead of dividing a by sin A to find c , we ... multiply by csc A , and this is why the tables omit the cosecant . 32. Given an Acute Angle and the Adjacent Side ...
... multiplying each by 10,000 . Only part of the actual division is shown . Instead of dividing a by sin A to find c , we ... multiply by csc A , and this is why the tables omit the cosecant . 32. Given an Acute Angle and the Adjacent Side ...
Página 36
... multiply b by sec A instead of dividing by cos A. The reason for not doing so is the same as that given in § 31 for not multiplying by csc A. 33. Given the Hypotenuse and a Side . For example , given a = 63 , find A , B , and b . c = 1 ...
... multiply b by sec A instead of dividing by cos A. The reason for not doing so is the same as that given in § 31 for not multiplying by csc A. 33. Given the Hypotenuse and a Side . For example , given a = 63 , find A , B , and b . c = 1 ...
Página 39
... multiplying and dividing by them is considerable . For this reason numerous devices have appeared for simplifying ... multiplication and division , but for trigono- metric work this is not of particular value because the tables must be ...
... multiplying and dividing by them is considerable . For this reason numerous devices have appeared for simplifying ... multiplication and division , but for trigono- metric work this is not of particular value because the tables must be ...
Página 43
... multiplied by the exponent . For if raising to the pth power , Hence A = 10 , AP = 10px log Ar = px = plog A. This ... multiplying the logarithm by the ex- ponent ( integral or fractional ) and then finding the number of which the result ...
... multiplied by the exponent . For if raising to the pth power , Hence A = 10 , AP = 10px log Ar = px = plog A. This ... multiplying the logarithm by the ex- ponent ( integral or fractional ) and then finding the number of which the result ...
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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.