Question

PLEASE HELP I REALLY NEED IT!!!! Detailed explanation please

Answer 1

So Explicit formula for 2nd one

• 2a_{a-1}

Or general formula as per Geometric progression

• a_n=ar^{n-1}=1(2)^{n-1}

For 50 years there are 365(50)=18250days excluding leap years (We will check for leap year if neck to neck situation arises)

Now find sum

Sum of 18250 terms

$\\ \rm\Rrightarrow \dfrac{a(r^n-1)}{r-1}$

$\\ \rm\Rrightarrow \dfrac{1(2^{18250}-1)}{2-1}$

1 from both denominator and numerator cancels out

$\\ \rm\Rrightarrow 2^{18250}-1$

$\\ \rm\Rrightarrow 6.272214002E5493$(Accurate)

It's far more than 1 M so second option would give you more penny