Question

4. If tan A = cot B, prove that A + B = 90°.
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Answer 1

Answer:

if Tan A = Cot B

that means TanA =Cot B = 45

So A=B=45

So A+B=90

45+45=90

HENCE PROVED

Step-by-step explanation:

Answer 2

tan=cot

tan=tan(90-b)

A=90-b. .A+B=90