Which is greater sin( 2690 ○) or cos ( 361 )
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Step-by-step explanation:
sin(2690)
sin(2520+170)
sin(170)
sin(90+80)
cos(80)
cos(361)
cos(360+1)
cos(1)
we know that cos is decreasing function
( cos A is greater than cos B ,where A>B)
Therefore cos(1)>cos(80)
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