2. He lives in a big city. a. b.
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
Given
Required
In trigonometry:
We need to solve for cosA, sinA and sinB
Given that:
and the tangent of an angle is a ratio of the opposite side (x) to the adjacent side (y),
So, we have:
and
For this angle A, we need t calculate its hypotenuse (z).
Using Pythagoras,
From here, we can calculate sin and cos A
and
To angle B.
Give that
and the cosine of an angle is a ratio of the adjacent side (a) to the hypotenuse side (c),
So, we have:
and
For this angle B, we need to calculate its opposite (b).
Using Pythagoras,
Collect like terms
From here, we can calculate sin B
Recall that:
and