4. What is the error in this equation for a trigonometric ratio? Explain the error in full sentences and give a corrected ratio. (5 points)

Question

asked May 28, 2022 152k views

1 Answer

Vincent Claes · Answer 1 · 2022-06-03T14:29:08+0000

Answer:

$\cos\ A = (2)/(4.5)$

Explanation:

Given

$sin\ A = (2)/(4.5)$

See attachment

Required

Explain and correct the error

The error in the equation is that: the formula of cosine of angle A is used to calculate the sine of angle A.

The ratio can be corrected as by using:

$\cos\ A = (Adjacent)/(Hypotenuse)$

$\cos\ A = (AC)/(AB)$

$\cos\ A = (2)/(4.5)$