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Question

Find the value of tan45cosec30+sec60cot455sin902cos0

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Solution

we know that tan45=cot45=sin90=1,cosec30=sec60=2,cos0=1

tan45cosec30+sec60cot455sin902cos0

= 12+215(1)2(1)

= 12+2152

= 1+452
= 0

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