Mathematics: Find the exact values of sin a and cos a. write fractions in lowest terms. (5 points) a right triangle abc is shown. leg ac has length 33, leg bc has length 44, and hypotenuse ab has length 55. sin a = four fifths ; cos a = three fifths sin a = three fifths ; cos a = four fifths sin a = five fourths ; cos a = five thirds sin a = four thirds ; cos a = three fourths

Find the exact values of sin a and cos a. write

shod74

18.01.2022

$sin\ A = \frac{4}{5}\\\\cos\ A = \frac{3}{5}$

Solution:

Given a right triangle ABC

The figure is attached below

From given,

AC = Base = 33

BC = Perpendicular = 44

AB = hyptotenuse = 55

We know that,

$Sin\ A = \frac{perpendicular}{hypotenuse}\\\\Sin\ A = \frac{44}{55}\\\\Sin\ A = \frac{4}{5}$

Also,

$cos\ A = \frac{base}{hypotenuse}\\\\cos\ A = \frac{33}{55}\\\\cos\ A = \frac{3}{5}$

Thus the values are found

$Find the exact values of sin a and cos a. write fractions in lowest terms. (5 points) a right triang$

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22.04.2020

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