Question

what is the value of sec​

Answer 1

What's the difference between an equinox and a solstice? The equinox marks the time when daylight and night-time are approximately the same length, with solstice occurring on the longest and shortest days (in terms of sunlight).

Answer 2

Step-by-step explanation:

sec(−1200°)sec(−1200°)

=sec(−1200°+360°)=sec(−840°)=sec(−1200°+360°)=sec(−840°)

=sec(−840°+360°)=sec(−480°)=sec(−840°+360°)=sec(−480°)

=sec(−480°+360°)=sec(−120°)=sec(−480°+360°)=sec(−120°)

=sec(−180°+60°)=−sec(60°)=sec(−180°+60°)=−sec(60°)

=−2