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Evaluate the following: i) tan135^(@) ...

Evaluate the following:
i) `tan135^(@)`
ii) `sec150^(@)`
iii) `cot240^(@)`
iv) `"cosec"1950^(@)`
v) `cos(-1125^(@))`
vi) `tan(-1470^(@))`
vii) `tan1710^(@)` viii) `cot(-1770^(@))`

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