SSC CPO 11 Nov 2022 Shift 1 Paper
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Question : 116 of 200
Marks:
+1,
-0
Simplify.
cos (36° - A) cos (36° + A) + cos (54° - A) cos (54° + A)
cos (36° - A) cos (36° + A) + cos (54° - A) cos (54° + A)
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