Answer:
Two expression are:
[tex]\sin A = \frac{40}{41}[/tex]
[tex]\cos B = \frac{40}{41}[/tex]
Step-by-step explanation:
Let rt triangle ABC.
Now, labeling the parts of a right triangle.
Let the right angle be labelled C and the hypotenuse c and
A and B denote the other two angles, and a and b the sides opposite them respectively.
In a right triangle ABC,
the trigonometric ratio is given by:
[tex]\sin A = \frac{opposite}{Hypotenuse} = \frac{a}{c}=\frac{40}{41}[/tex]
[tex]\cos B= \frac{Adjacent side}{Hypotenuse} = \frac{a}{c}=\frac{40}{41}[/tex]
Therefore, the two expression which is equivalent to [tex]\frac{40}{41}[/tex] is ; [tex]\sin A = \frac{40}{41}[/tex]
[tex]\cos B = \frac{40}{41}[/tex]