उपर्युक्त चित्र में /ABD = /PQD = /CDQ...

उपर्युक्त चित्र में
`/_ABD = /_PQD = /_CDQ = pi/2`. यदि `AB = x, PQ = z` और `CD = y` हैं, तो निम्नलिखित में कौन सा एक सही है ?

A

A)`1/x + 1/y = 1/z`

B

B)`1/x + 1/z = 1/y`

C

C)`1/z + 1/y = 1/x`

D

D)`1/x + 1/y = 2/z`

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