Math, asked by armyfreefiredoll, 5 months ago

If y-1/y2
= 4, find the value of the following
(i) y2 +1/y2

Answers

Answered by poorvika56

2

sorry I don't no the answer

Answered by palaniappan591

2

Answer:

y-1=4×2y

y-1=8y

-1=8y-y

-1=7y

y= -1/7

(i) 2y+1/2y

2(-1/7)+1/2(-1/7)

(-2/7)+1/-2/7

(5/7)/(-2/7)

(5/7)×(7/-2)

5/-2

-5/2

Ans: -5/2

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