if a²+1/a²=7 and a is not equal to 0,find a+1/a
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Answer:
a + 1/a = 3
Step-by-step explanation:
a² + 1/a² = 7
ADDING (+2) ON BOTH THE SIDES
a² + 1/a² + 2 = 7 + 2
(a)² + (1/a)² + (2 × a × 1/a) = 9
(a + 1/a)² = 9
a + 1/a = √9
a + 1/a = 3
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