Question

Simplify: (1/3)–² + (1/4)–² + (1/5)–² – (1/6)–²​

Answer 1

Answer:

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Answer 2

solution

9 + ( 1 / 4 ) ^ - 2 + ( 1 / 5 ) ^ - 2 - ( 1 / 6 ) ^ - 2

9 + 16 + ( 1 / 5 ) ^ - 2 - ( 1 / 6 ) ^ - 2

25 + ( 1 / 5 ) ^ - 2 - ( 1 / 6 ) ^ - 2

25 + 25 - ( 1 / 6 ) ^ - 2

50 - ( 1 / 6 ) ^ - 2

50 - 36

14