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17-03-2021
Mathematics

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solve the sin, cos and tan of -240 degrees without calculator. Show Working

Respuesta :

17-03-2021

Step-by-step explanation:

sin(-240)°.

=cos(270-240)°

=cos 30°

=√3/2

cos(-240°)

=sin(270°-240°)

=sin30°

=0.5

tan(240°)

=tan(270°-240°)

=tan30°

=1/√3

Answer Link

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