sin a+cos a/sin a- cos a+ sin a- cos a / sin a+ cos a
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Answered by
2
Answer:
sin a + cos a + sin a - cosa
----------------- -----------------
sin a - cos a sin a + cos a
= sin a2 + cos a2 + 2sin a cosa + sin a2 + cos a2 - 2sinacosa
------------------------------------------------
sin a2 - cos a2
= 1 + 1
--------
sin a2 - cosa2
= 2
---------
sin a2 - cosa2
Answered by
50
Answer:
By using this identites
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