If - A, - B are reciprocal and C, D are opposite, then - (2C + 2d-3ab) / (- 1)= | Math enthusiast | Mathematical art

If - A, - B are reciprocal and C, D are opposite, then - (2C + 2d-3ab) / (- 1)=

-a. - B reciprocal
So: (- a) (- b) = AB = 1
c. D is opposite to each other
So: C + D = 0
So:
-(2c+2d-3ab)÷(-1)
=-【2（c+d）-3ab】÷（-1）
=-（-3）÷（-1）
=3÷（-1）
= -3
You can ask if you don't understand! Thank you!
I wish you progress in your study

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