G
cos A
1 + sin A.
-
+
1 + sin A
- = 2 sec A
Cos A
-Cos A by 1 + sin a + 1 + sin by cos A is equal to sec a prove that Cos A divided by 1 + sin a + 1 + sin a divided by Cos A is equal to 2 prove that
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Answered by
4
Step-by-step explanation:
cosA/1+sinA + 1+sinA/cosA
=cos²A+(1+sinA)²/cosA(1+sinA)
=cos²A+1+sin²A+2sinA/cosA(1+sinA)
=2+2sinA/cosA(1+sinA)
=2(1+sinA)/cosA(1+sinA)
=2/cosA
=2secA
Answered by
3
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