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NDA Math Trigonometric Ratios of Angles and Equations Part 2

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DIRECTIONS (Qs. 22-24) : Read the following information and answer the three items that follow:
Let α=β=15°

[NDA-I 2020]

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Question : 51

Total: 75

What is the value of sin‌α+cos‌β?

1
√2
1
2√2
√3
2√2
√3
√2

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