find the number whose logarithm is 4.6431150. .000439658.

41. Given

log 56891 = 4.7550436,

log 56892 = 4.7550512;

find the number whose logarithm is .7550480. 5.689158.

find the number whose logarithm is 3.0376371. 1090.5286.

44. Given

log 257254.4103554,

log 257264.4103723;

find the number whose logarithm is 7.4103720.

Ans. .00000025725982.

In the following six examples the student must take his logarithms from the tables.

45. Required the product of 3670.257 and 12.61158, by logarithms. Ans. 46287.74.

46. Required the quotient of .1234567 by 54.87645, by logarithms. Ans. .002249721.

47. Required the cube of .3180236, by logarithms.

Ans. .03216458.

48. Required the cube root of .3663265, by logarithms. Ans. .7155216.

49. Required the eleventh root of 63.742.

50. Required the fifth root of .07.

1.45894.

.58752.

=

log cos 22° 28' 10" 9.9657112;

find the angle whose log cosine is 9.9657056.

22° 28' 16".

In the following examples the tables are to be used:

79. Find the angle whose log cosine is 9.9713383.

Ans. 20° 35' 16".

80. Find the angle whose log cosine is 9.9165646.