Answer:Let =tan2
t
=
tan
x
2
, then cos=1−21+2
cos
x
=
1
−
t
2
1
+
t
2
and tan=21−2
tan
x
=
2
t
1
−
t
2
.
Now
1+21−2+21−2(1+)21−21+1−tan2
Step-by-step explanation:
Answer:
42
Step-by-step explanation:
Answer:
It is C
Step-by-step explanation:
Answer:
5/19
Step-by-step explanation:
There's no explanation, it's just common sense ♀️