If arc =AB is equal to arcCD then line AB should equa lineCD
If a=0, then the denominator is equal to 0. Since you cannot divide by zero, you are not allowed to do this.
Hope This helps!
It's D , the digit after the number ur rounding
There are 5 little lines between 0 and -1, so each line represents 1/5.
B is located 3 lines to the left of -1, so it would be located at - 1 3/5.
Am absolute value is a positive number so - 1 3/5 would become 1 3/5.
The answer would be A. 1 3/5
It means the null space is just the 0 vector