The interest paid during t = 10th year on a n=10-year bond F = $1,000 bond with annual coupons to be redeemed at C = $2,000 is equal to 80% of the principal adjustment during the same year. If = 2 + 0.06, where is the coupon rate and is the yield rate, find the original price of the bond.

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(theory of mathematic interest)