Why is a / B + B / a equal to - 6? It is known that ab = - 1, a + B = 2 My classmate's answer is 6. Is the example wrong?

Why is a / B + B / a equal to - 6? It is known that ab = - 1, a + B = 2 My classmate's answer is 6. Is the example wrong?




a: If a * 4 = b * 5, then a: B = (): ()


a: 8 = 0.4:10, then a is equal to (0.32), if a * 4 = b * 5, then a: B = (5): (4)



What is the original number 4.8, (a △ 5) / (B △ 5) equal to


(a÷5)÷(b÷5)=a÷b=4.8



One part of a × 8 is equal to one part of B × 5
Find B: 5 = (): ()


8/a = 5/b
That is, 8: a = 5: B
Reverse the order to get B: 5 = A: 8
Hope to help you, please adopt, thank you!

Elden Ring Premiere

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