The fourth term of an arithmetic progression is one less than twice the
second term If the sixth term is 7,
find the first term

2

Step-by-step explanation:

Given AP where:

To find

Since

Initial equations will change as:

Comparing the above:

Then:

The first term is 2

answer: asdfghjkl,mnbv

step-by-step explanation:

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11