Question

cos 90 +cos 90 + sin 90 -

Answer 1

Hello !!



Cos90° = 0


And,



Sin90° = 1



So,


Cos90° + Cos90° + Sin90° = 0+0+1


=> 1 [ Answer ]

Answer 2

$\cos(90) = 0 \\ \sin(90) = 1 \\ \\ \cos(90) + \cos(90) + \sin(90) \\ = 0 + 0 + 1 \\ = 1$
hope this helps.....
if correct...
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