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What is $5costheta-csctheta$ in terms of $sintheta$ ?

1 Answer

Mar 22, 2016

$(5/2sin2theta-1)/sintheta$

Explanation:

$5costheta-cosectheta=5costheta-1/sintheta$

$=(5costhetasintheta-1)/sintheta$

$=(5/2sin2theta-1)/sintheta$

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