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Mathematics
6 December, 06:45
Given that sec x - tan x=1:4
+1
Answers (
1
)
Kelsey Dudley
6 December, 07:04
0
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
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