defence exam BSF Head Constable (RO/RM) Mock Test 2023 Quantitative Aptitude Trigonometry

If sin α = \(\frac{3}{4}\), then cos α is -

1
\(\frac{\sqrt{7}}{4}\)
2
\(\frac{1}{4}\)
3
\(\frac{1}{2}\)
4
\(\frac{\sqrt{3}}{4}\)
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