Round your answer to the nearest hundredth. Again.

Given:

In the given triangle ΔABC,

AB = 9 unit

AC = 2 unit

To find the value of ∠ABC.

Formula

From trigonometric ratio we get,

Let us take, ∠ABC =

With respect , AC is the opposite side and AB is the hypotenuse.

So,

or, =

or,

or,

Hence,

The value of ∠ABC is 12.84°.

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: