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OpenStudy (anonymous):
FIND THE VALUE OF: sin (-105) degrees In trigonometry ADDITION AND SUBTRACTION IDENTITIES
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Parth (parthkohli):
105 = 60 + 45
Parth (parthkohli):
Also, sin(-x) = -sin(x). Do you know this?
Parth (parthkohli):
sin(-(60+45))
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