What is cosx/ (secx-1) not in fractional form?

To find the expression cos(x) / (sec(x) - 1) in non-fractional form, we need to simplify and eliminate any fractions.

First, let's write sec(x) in terms of cos(x) since sec(x) is the reciprocal of cos(x):

sec(x) = 1 / cos(x)

Substituting this into the equation, we have:

cos(x) / (1/cos(x) - 1)

Next, we can simplify the denominator by finding a common denominator. The common denominator is cos(x), so we multiply both the numerator and the denominator by cos(x):

[cos(x) * cos(x)] / (1 - cos(x))

Simplifying further, we have:

cos²(x) / (1 - cos(x))

So, the expression cos(x) / (sec(x) - 1) in non-fractional form is cos²(x) / (1 - cos(x)).