withoute using calculator find the value of sin (-765°).
tnwramit1:
sin(720-765)=sin(-45)
=-. 707
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sin 765 = sin ( 4pie + 45 )
sin 765 = sin 45 ( as after 1 complete revolution of a circle it's trignometric value remain same)
sin 765 = 1/root2
Frnd lokesh it's 4pie not 2pie bcuz 2pie = 360.
HOPE U GE UR MISTAKE ..........!!
HOPE SEEMS U GET UR ANSWER ................!!!
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sin 765 = sin 45 ( as after 1 complete revolution of a circle it's trignometric value remain same)
sin 765 = 1/root2
Frnd lokesh it's 4pie not 2pie bcuz 2pie = 360.
HOPE U GE UR MISTAKE ..........!!
HOPE SEEMS U GET UR ANSWER ................!!!
^_^
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hope my answer helps you a lot
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