If ` x + (1)/(x) = 6` , then find `x^(2) + (1)/(x^(2))` .A. 34B. 36C. 32D. 38

If ` x + (1)/(x) = 6` , then find `x^(2) + (1)/(x^(2))` .A. 34B. 36C.

1.	If ` x + (1)/(x) = 6` , then find `x^(2) + (1)/(x^(2))` .A. 34B. 36C. 32D. 38
Answer» Correct Answer - A Given , `x + (1)/(x) = 6` Taking squares on both the sides , we get `(x + (1)/(x))^(2) = 6^(2)` `implies x^(2) + (1)/(x^(2)) + 2 = 36` `implies x^(2) + (1)/(x^(2)) = 34` Hence , the correct option is (a) .

Which of the following is/are perfect squares ?A. `16a^(2) + 36b^(2) - 48 ab`B. `9x^(2) + 18xy + 9y^(2)`C. Both (a) and (b)D. Neither (a) nor (b)
If `a + (1)/(a) = 6` , then find `a^(4) + (1)/(a^(4))`.
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If `3x + (1)/(x) = 6` , then find `9x^(2) + (1)/(x^(2))`.A. 24B. 27C. 30D. 33
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An equation which is true for all real values of its variables is called an identify .
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