Question

if tan A=3/4 and A+B =90 what is the value of cot B

Answer 1

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