Question

If tan A= cotB, prove that A+B=90°

Answer 1

Answer:

tan A= cot B

= tan (90-B)

Hence

A=90-B

or,A+B=90

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

tanA=30=1/root3

cotB=60=1/roo3

then tanA =cotB and

=a+b=90

30+60=90