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SSC CHSL 8-Jan-2017 Shift 1 Paper

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Question : 65

Total: 100

If sinC + sinD =X, then the value of X is?

2cos[(C+D)/2]sin[(C-D)/2]
2sin[(C+D)/2]cos[(C-D)/2]
2cos[(C+D)/2]cos[(C-D)/2]
2sin[(C+D)/2]sin[(D-C)/2]

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