trigonometry

posted by .

can you explain to me in details please of how these type of questions can be answered without using a calculator to find the direct answer.

Find the following functions correct to five decimal places:

a. sin 22degrees 43'
b. cos 44degrees 56'
C. sin 79degrees 23'30'

  • trigonometry -

    my trig book has tables in degrees and minutes

    for example, look-up sin 24 deg 40 min and sin 24 deg 50 min. cal. the correction and add to the smaller angle for sin, tan, sec (subtract the correction for cos, cot, csc)

    sin 24d 40' = .4173
    sin 24d 50' = .4200
    difference = .0027

    actual minutes = 43'
    smaller angle above = 40'
    difference = 3' * .10 = .3000


    correction = .3000 * .0027 = .0008

    sin 24d 40' = .4173
    add correction .0008
    sin 24d 43' = .4181

    you try the others

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. calculus

    Find the linearization of the function below at x = π/3.?
  2. calculus

    Find the linearization of the function below at x = π/3.?
  3. Trigonometry

    Please review and tell me if i did something wrong. Find the following functions correct to five decimal places: a. sin 22degrees 43' b. cos 44degrees 56' c. sin 49degrees 17' d. tan 11degrees 37' e. sin 79degrees 23'30' f. cot 19degrees …
  4. math

    Find the value of the function y=sqrt(x+1)+sin(x)-0.5, correct to 3 decimal places, when x=0.05 without the use of a calculator.
  5. Trigonometry

    Use inverse trigonometric functions to find the solutions of the equation that are in the given interval, and approximate the solutions to four decimal places. (Enter your answers as a comma-separated list.) 10 sin^2 x = 3 sin x + …
  6. Trigonometry

    Use inverse trigonometric functions to find the solutions of the equation that are in the given interval, and approximate the solutions to four decimal places. (Enter your answers as a comma-separated list.) 10 sin^2 x = 3 sin x + …
  7. Trigonometry

    Use inverse trigonometric functions to find the solutions of the equation that are in the given interval, and approximate the solutions to four decimal places. (Enter your answers as a comma-separated list.) 10 sin^2 x = 3 sin x + …
  8. Math check

    Complete the following hypothesis test: Ho: ì = 52, Ha: ì < 52, á = 0.01 using the data below. 43 48 44 48 42 60 54 44 50 35 48 58 (a) Find t. (Give your answer correct to two decimal places.) -2.05 . (ii) Find the p-value. (Give …
  9. statistics check

    Consider the following bivariate data. Point A B C D E F G H I J x 3 4 2 1 7 2 1 0 4 2 y 1 7 3 3 6 6 5 0 6 2 (b) Calculate the covariance. (Give your answer correct to two decimal places.) 5.35 was my answer . (c) Calculate sx and …
  10. Trigonometry

    Find the symbols for degrees, minutes and seconds on your calculator. Then find cot(43‹41Œ13"). Please give the details of what you did in addition to the answer. Explain what you did to find this. Has any other response used …

More Similar Questions