Question

Find the secant of angle A.

Answer 1

4/3
5/3
4/5
3/5

Answer 2

\[\sec=\frac{1}{\cos}\]

Answer 3

So let's try to find \[\cos(A)\]

Answer 4

\[\cos(A)=\frac{adjacent}{hypotenuse}\]

Answer 5

can you tell me the adjacent side and the hypotenuse in respect to angle A?

Answer 6

5/9?

Answer 7

adjacent side= 9
hypotenuse =15

so in this case \[\cos(A)=\frac{9}{15}\]

Answer 8

but we are looking for secant of A\[\sec(A)=\frac{1}{\cos}\]\[\sec(A)=\frac{1}{\frac{9}{15}}\]\[\sec(A)=\frac{15}{9}\]