Q. 1 J4.7( 3 Votes )

# Find the values o

Answer :

Given  -tan 585° = -tan (90° × 6 + 45°)

585° lies in the third quadrant in which the tangent function is positive.

tan (-585)° = -tan (90° × 6 + 45°)

= - (tan 45°)

= -1

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