Question

Select the correct answer.

Consider this equation.
cos(8) = -
If 8 is an angle in quadrant II, what is the value of tanê)?
ОА.
15
8
ов. 15
ос. -
✓15
8
OD. 15

Answer 1

Given that:

`\cos \theta=(adjacent)/(hypothenus)`

and we are given that:

`\cos \theta=-(7)/(8)`

we can say that:

adjacent = 7, hypothenus = 8

And we can apply the Pythagorean theorem which is:

`\text{hypothenus}^2=opposite^2+adjacent^2`

Thus, we have that: