Question

please solve this maths problem...

Find the value of cos(-1710)

its urgent for 100 points

Answer 1

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As we know that values of cosx repaets itself after an interval of 2Π or 360°

so,

⏩cos(-1710) =

⏩ cos (-1710 +5•360°)

⏩cos(-1710 +1800 )

⏩cos(90)

⏩=0

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Answer 2

Hello mate,

This can be solved by

Equational and rounding off in quadrant values

We all are aware by the fact that Cos x values are repitative at an interval of 360°

=cos(-1710 + 360*360*360*360*360)

=cos(-1710 +1800)

=cos(90)

=0