Question

find sec0 if sin0= 7/25
the 0 is the symbol not an actual 0

Answer 1

Recall that sine of an angle is defined to be equal to the ratio of the opposite and hypotenuse, ie,


\[\Large \sin(\theta) = \frac{\text{opposite}}{\text{hypotenuse}}\]

Answer 2

if we're given \[\Large \sin(\theta) = \frac{7}{25}\] then we can add this info to the drawing

Answer 3

now let x be the missing side



use the pythagorean theorem to find x