Question

cos 60× cos 30 - sin 60 sin 30​

Answer 1

Step-by-step explanation:

cos 60× cos 30 - sin 60 sin 30

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

=0

hope you understand

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