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tarun

· started a discussion

· 1 Months ago

why you added 1 in sin2x ? (Question:95757.0)

plz explain

Question:
If sin 2x = \(\cfrac{1}{5}\), the value of(sinx + cosx) is:
Options:
A) \(\sqrt{\cfrac{7}{5}}\)
B) \(\sqrt{\cfrac{4}{5}}\)
C) \(\sqrt{\cfrac{6}{5}}\)
D) \(\sqrt{\cfrac{2}{5}}\)
Solution:

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