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If x + \(\frac{1}{x}\) = 12 then find the value of ( (x)2 + (\(\frac{1}{x}\))2 + 17) |
160 159 157 170 |
159 |
⇒ If x + \(\frac{1}{x}\) = a then ( (x)2 + (\(\frac{1}{x}\))2 ) = a2 - 2 Here, x + \(\frac{1}{x}\) = 12, then ⇒ ( (x)2 + (\(\frac{1}{x}\))2 + 17 ) = 122 - 2 + 17 = 159 |
