if A+B=90;SinA=3/4 then secB=?
Since sine =
, draw a right triangle
with opposite side the numerator of 3/4, which is 3, and
a hypotenuse which is the denominator of 3/4, which is 4:
A simpler way to do it is this way:
sin(A) = cos(B) = 3/4, and sec(B) = [reciprocal of cos(B)] = 4/3
{Edwin