Question

Tan(180-A) x cos(180+A) / sin(360-A)

Answer 1

Answer: using

Tan 180-A = -Tan A

Cos(180+A) =-cos A

Sin (360-A) = -sin A

-Tan A*-cos A/ -sin A =-1

Answer 2

Answer:

Step-by-step explanation:

Remember what is positive in what quadrants:

Tan(180-A) * cos(180+A) / sin (360-A)

Tan is negative in second quadrant

Cos is negative in third quadrant

Sin is negative in last quadrants

-TanA* -CosA / -SinA

$-\frac{SinA}{CosA} * -\frac{CosA}{SinA}\\1$