[填空题]
On 1st of January 2022 , Grace invests P dolz1 a jl*xkyopa6iz)7x6i7-ut)f a0 y rlars in an ahn0 y.xb5m m*+ fb hojt,d*rv1m xe;g:ccount that pays a nominal annual interest rate of 6 % , compounded quarterly. The amount of money in Grace's account at the end of each year follows a geometric sequence with common ra0x*o5bj y:h1m rdxbvm; +.gfe*h ,nmttio, $\alpha$ .
1. Find the value of $\alpha$ , giving your answer to four significant figures.
Grace makes no further deposits or withdrawals from the account.≈
2. Find the year in which the amount of money in Grace's account will become triple the amount she invested. years
