Question

plz solved anyone quickly

Answer 1

Step-by-step explanation:

given:

given:a,2b,c are in a.p

thus,

thus,2b-a=c-2b

4b=a+c.....equ.(i)

we know,

we know,(a+c)²+(a-c)²=4ac

(4b)²-(a-c)²=4ac from ...equ(i)

(4b)²-(a-c)²=4ac

(a-c)²=4(4b²-ac) [proved]