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Mathematics 18 Online
OpenStudy (anonymous):

help me simplify because brain doesnt work atm...

OpenStudy (anonymous):

\[1. \cos30 \cos45 - \sin30 \sin45\]

OpenStudy (anonymous):

2. sin60 cos45 + cos60 sin45

OpenStudy (anonymous):

3. tan30 + tan45 / 1-tan30 tan45

OpenStudy (eyust707):

|dw:1422264027732:dw|

OpenStudy (eyust707):

Cos is always the x value Sin is always the y value

OpenStudy (eyust707):

|dw:1422264095242:dw|

OpenStudy (eyust707):

|dw:1422264131034:dw|

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