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In a DeltaABC, AD is the altitude from A...

In a `DeltaABC`, AD is the altitude from A. Given `b gt c, angleC=23^(@)" and "AD=(abc)/((b^(2)-c^(2))`, find `angleB`.

A

`53^(@)`

B

`113^(@)`

C

`87^(@)`

D

none of these

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The correct Answer is:
B
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OBJECTIVE RD SHARMA ENGLISH-PROPERTIES OF TRIANGLES AND CIRCLES CONNECTED WITH THEM-Chapter Test
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