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\cos 75^{0}

এর মান কত ?

\frac{\sqrt{3} + 1}{2 \sqrt{2}}

\frac{\sqrt{3} + 1}{2}

\frac{\sqrt{3} - 1}{2}

\frac{\sqrt{3} - 1}{2 \sqrt{2}}

\frac{\sqrt{3}}{2 \sqrt{2}}

ANS : 4

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