Question

Use numerals instead of words. If necessary, use / for the fraction bar(s).

The measure of angle 0 is 7 pie/4. The measure of its reference angle Is _°, and tan 0 is _

Answer 1

-1

Explanation:

angle 0: 7pie/4

=7*180/4

=1260/4

=315

hence reference angle(0)= 315

now, tan 0 = tan315

= tan(360-45)

= -tan45

= -1