. The sum of three numbers in A.P, is 21 and product is 315, Find the

1.	. The sum of three numbers in A.P, is 21 and product is 315, Find the numbers.l th sum of their squares is 59. Find t
Answer» let the numbers be (a-d),(a),(a+d) therefore,ATP(a-d)+(a)+(a+d)=21thus,3a=21a=7 again,ATP (a-d) (a) (a+d)=315(49-dd)= 45 dd=4thus,d=2. or -2 thereforethe numbers arewhen d=27-2 =57. =77+2 =9 when d=-27+2 =97 =77-2 =5

. The sum of three numbers in A.P, is 21 and product is 315, Find the numbers.l th sum of their squares is 59. Find t

Answer»

let the numbers be (a-d),(a),(a+d)

therefore,ATP(a-d)+(a)+(a+d)=21thus,3a=21a=7

again,ATP

(a-d) (a) (a+d)=315(49-d*d)= 45 d*d=4thus,d=2. or -2

thereforethe numbers arewhen d=27-2 =57. =77+2 =9

when d=-27+2 =97 =77-2 =5