Question

If tan A=cotB,then A+B=​

Answer 1

Answer:

tanA = cotB (eq.1){given}

also tanA =cot(90°-A). (equation.2)

From eq.1and2

cotB=cot(90°-A)

=>B=90°-A

=>A+B=90°

Answer 2

If tanA=cotB(eq-1)
tanA=cot(90-A)(eq-2)
Then by eq-1and eq-2
CotB=cot(90-A)
B=90-A
A+B=90