Evaluate: 3Cos² 600Sec² 300 -2Sin² 300 tan² 60
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Answer:
sin2600cos2300+tan450cos600sin300
=sin2600sin2600+(1)cos2600
=sin4600+cos2600
Substituting the values of sin600 and cos600 we get
(23)4+(21)2
=169+41
=1613
Hence answer is A.
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