sin 650°- sin 115° is equal to
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Step-by-step explanation:
The identities of sine 115° are as follows:
sin115°
= cos (90°-115°) = cos -25°
= sin (180°-115°) = sin 65°
-sin115°
= cos (90°+115°) = cos 205°
= sin (180°+115°) = sin 295°
Note that sin115° is periodic: sin (115° + n × 360°) = sin 115 degrees, n.
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