a/b,ab,a-b,a+b are four terms of AP if the AP have 5 terms find the fith term...
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a/b,ab,a-b,a+b are four terms of AP if the AP have 5 terms find the fith term...
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HELLO GUYS
Find the common difference by
substracting
two consecutive terms...
i am taking last two terms...
a+b -(a-b) = 2b
we got d = 2b
therefore,
a-b - (ab) = 2b
solving this u will get a relation between
a and b
b = a/(a+3)
now substitute everything in terms of a in
the equation
ab-a/b =2b and solve for a....
a=-9/8
b= -3/5
now you can get the fifth term...