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If A+B=90º and tan A=3/4, what is cot B?

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asked Feb 5, 2018 in Mathematics by Kundan kumar (49,132 points) ● 34 ● 441 ● 1398
If A+B=90º and tan A=3/4, what is cot B?

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answered Feb 5, 2018 by Vikash Kumar (144,729 points) ● 8 ● 11 ● 26
 
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Solution is...........


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answered Feb 5, 2018 by sarthaks (25,122 points) ● 9 ● 25 ● 41

A+B =90°
⇒A= 90°-B

tanA = 3/4
⇒tan(90°-B) = 3/4

∵ tan(90°-A) = cotA

∴ tan(90°-B) = 3/4
⇒cotB = 3/4

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If tan A=cotB, prove that A + B = 90º .
asked Feb 5, 2018 in Mathematics by Kundan kumar (49,132 points)

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