Weckshet
Mathematics.
1. If x+1/x= 4, then find the value of x²+1/x²
Answers
Answered by
8
EXPLANATION.
⇒ (x + 1/x) = 4.
As we know that,
Squaring on both sides of the equation, we get.
⇒ (x + 1/x)² = (4)².
⇒ x² + 1/x² + 2(x)(1/x) = 16.
⇒ x² + 1/x² + 2 = 16.
⇒ x² + 1/x² = 16 - 2.
⇒ x² + 1/x² = 14.
Answered by
1
Step-by-step explanation:
Hence the value of x² + 1/x² = 14.
hope it helps.
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