Evaluate Cos 45o Cos 30o - Sin 45o Sin 30o leaving the answer in surd form
a
\(\frac{\sqrt{2}-1}{2}\)
b
\(\frac{\sqrt{3}-\sqrt{2}}{4}\)
c
\(\frac{\sqrt{6}-\sqrt{2}}{2}\)
d
\(\frac{\sqrt{6}-\sqrt{2}}{4}\)
Explanation
Correct Option
dVideo Explanation
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