find value of sin 765°
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Step-by-step explanation:
sin 765 = sin (2×360 + 45 )
= sin 45
= 1/√2
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sin 765°=(Π/180°×765°)
17Π/4
sin 765°=sin 17 Π/4
sin(4Π+Π/4)
sinΠ/4
1√2
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