જો \(\cos ^2 θ=\frac{3}{4}\) , જ્યાં θ એક લઘુકોણ છે, તો મૂલ્ય sin (θ + 30°)છે:

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

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