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Find the values of (i) " sin "405...

Find the values of
`(i) " sin "405^(@) " " (ii) " sec " (-1470^(@)) " "(iii) " tan " (-300^(@))`
`(iv) " cot " (585^(@)) " "(v) " cosec " (-750^(@)) " "(vi) " cos " (-2220^(@))`

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