A rational expression is undefined if the denominator is zero. Since the denominator is
, the expression is undefined if

Answer:
60cos(25)=54.378467222199
Answer:
5b + 12c
Step-by-step explanation:
-5a +5 a = 0
12b-7b = 5b
12c= 12c
therefore you have the expression 5b+12c
Answer:
x=3
Step-by-step explanation:
9x+63=100
9x+0=27
9(3)=27
Answer:
The value of x will be 8
Step-by-step explanation:
We have given that 
We have to find the value of x
As 
For finding the value of x we have to square both side
On squaring both side
We done squaring both side for easy simplification

So x = 8
So the value of x will be 8
So answer will be 8