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Today at 12:51 PM
Mathematics

Answered

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

Answer :

Today at 12:56 PM

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

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