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Praveen kumar

· started a discussion

· 1 Months ago

rhh (Question: 200358.0 )

sorry my mistake

Question:

If sin\(\alpha\) sec(30o+\(\alpha\))=1 and 0o<\(\alpha\)<60o then the value of sin\(\alpha\) + cos2\(\alpha\) is:

Options:
A) 0
B) -1
C) 1
D) 2
Solution:
Ans: (c)


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