robert7248
30.01.2020 •
Mathematics
Rewrite cos2 67.5° – sin2 67.5° using a double-angle identity.
cos 135°
sin 135°
cos 33.75°
sin 33.75°
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Ответ:
Because this is the same form as the equation you asked for, just double 67.5 to get cos(135).
Ответ:
gg
Step-by-step explanation: