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If A+B=225^@ Find cotA/(1+cotA)*cotB(1+...

If A+B=`225^@` Find cotA/(1+cotA)*cotB(1+cotB)`

A

1

B

`-1`

C

0

D

`1/2`

Text Solution

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The correct Answer is:
D
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TARGET PUBLICATION-TRIGONOMETRIC FUNCTIONS OF COMPOUND ANGLES -CRITICAL THINKING
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