Step-by-step explanation:
(secx-tanx)(secx+tanx)
=sec^2-tan^2
=1
Answer:
d = 102° , e = 56° , f = 22°
Step-by-step explanation:
d and 102° are vertically opposite angles and congruent , so
d = 102°
e and 56° are vertically opposite angles and are congruent , so
e = 56°
f, d and e lie on a straight line and sum to 180° , then
f + d + e = 180° , that is
f + 102° + 56° = 180°
f + 158° = 180° ( subtract 158° from both sides )
f = 22°
Answer:
The equation given has no solution.
Step-by-step explanation:
The equation given is:
Therefore, this is false.
Answer:
the real part is 80
the imaginary part is -60
Step-by-step explanation:
Answer:
8 ft tall
Step-by-step explanation:
the person that is 5 ft has a shadow that is 4 foot so its 1 foot off because the direction that the sun's facing you
