It is given in the question that f is a one-to-one function.
And for a one-to - one function,
If

So we will get

Answer:
71
Step-by-step explanation:
4, 7, 12, 21, 38, ...
- 2+2=2¹+2
- 4+3= 2²+3
- 8+4= 2³+4
- 16+5= 2⁴+5
- 32+6= 2⁵+6
next term:
nth term:
Answer
106 sio so you multiply first
1+1+2+3+4+5+6×15
1+1+2+3+4+5+90
then you add all of them then it will be 106