if a×=b y=c z and b²=a∗c,prove that y=2xz/z+x answer this question please About the author Charlotte
Answer: Given ax = by = cz and b2 = ac Let ax = by = cz = k Consider, ax = k ⇒ a = k1/x Similarly, we get b = k1/y and c = k1/z Now consider, b2 = ac ⇒ (k1/y)2 = (k1/x)(k1/z) ⇒ k2/y = k1/x + 1/z Comparing both the sides, we get (2/y) = (1/x) + (1/z) ⇒ (2/y) = (x + z)/xz ∴ y = (2xz)/(x + z) Step-by-step explanation: please mark me as brainlist only one brainlist please Reply
Answer:
Given ax = by = cz and b2 = ac
Let ax = by = cz = k
Consider, ax = k ⇒ a = k1/x
Similarly, we get b = k1/y and c = k1/z
Now consider, b2 = ac
⇒ (k1/y)2 = (k1/x)(k1/z)
⇒ k2/y = k1/x + 1/z
Comparing both the sides, we get
(2/y) = (1/x) + (1/z)
⇒ (2/y) = (x + z)/xz
∴ y = (2xz)/(x + z)
Step-by-step explanation:
please mark me as brainlist only one brainlist please