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OpenStudy (iwanttogotostanford):
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myininaya (myininaya):
do you remember how to multiply conjugates for example how do you multiply (a-b)(a+b) ?
OpenStudy (iwanttogotostanford):
@myininaya no, could I have help with that?
OpenStudy (ineedhelplz):
\[√(1-\sinθ)(1+\sinθ) = √(1-\sin^2θ) = √(\cos^2θ) = \cos θ \]
OpenStudy (iwanttogotostanford):
@ineedhelplz is that the answer?
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