Is (sec(-1))/(1-cos(x))=sec(x) ?

The answer to whether (sec(-1))/(1-cos(x))=sec(x) is False

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prove (sec(-1))/(1-cos(x))=sec(x)

prove

\frac{sec ( - 1 )}{1 - cos ( x )} = sec (x)

False

Solution steps

\frac{sec ( - 1 )}{1 - cos ( x )} = sec (x)

Show that the two sides are not equal

For

\frac{sec ( - 1 )}{1 - cos ( x )} = sec (x)

plug in

x = 1

\frac{sec ( - 1 )}{1 - cos ( 1 )} = 4.02615 \dots

\frac{sec ( - 1 )}{1 - cos ( 1 )}

Refine to a decimal form

= 4.02615 \dots

sec (1) = 1.85081 \dots

sec (1)

Refine to a decimal form

= 1.85081 \dots

The two sides are not equal

\Rightarrow False

Is (sec(-1))/(1-cos(x))=sec(x) ?
The answer to whether (sec(-1))/(1-cos(x))=sec(x) is False