Question

If ∆ stands for the operation'adding first number to twice the second number',then find the value of(1∆2)∆3.​

Answer 1

Answer:

11

Step-by-step explanation:

(1∆2)∆3=(1+2×2)∆3

=5∆3=

5+3×2=11

Answer 2

Answer:

Step-by-step explanation:first no =1 and second no = 2.so twice 2nd +1st = 5