Question

If a, band c are in A. p. Show that: 4a, 4b and 4c are in A. P.

Answer 1

a, b, c are in AP
So,
b - a = c - b
Multiplying with 4 on both sides
4(b - a) = 4(c - b)
4b - 4a = 4c - 4b
So,
4a, 4b, 4c are in AP
Hope this helps u Ms Ayushsahani......
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