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Maths-

General

Easy

Question

$tan space A equals fraction numerator 1 minus cos space B over denominator sin begin display style space end style B end fraction not stretchy rightwards double arrow tan space 2 A minus tan space B equals$

0
1
1/2
1/4

The correct answer is: 0

sol. Use , $1 minus c o s space B equals 2 s i n squared space B divided by 2$ and $sin space B equals 2 sin space B over 2 cos space B over 2$

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Physics-General

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Physics-General

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parallel

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