UPSC NDA I and II 2020 Math Solved Paper
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DIRECTIONS (Qs. 22-24) : Read the following information and answer the three items that follow:
Letα = β = 15 °
Let
[NDA-I 2020]
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Question : 22 of 120
Marks:
+1,
-0
What is the value of sin α + cos β ?
[NDA-I 2020]
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