Question

if tan A = cot B ,then the valunof (A​

Answer 1

Answer:

tanA= cotB

now, tanA = cot(90-A)

therefore ,cot(90-A)= cot B

90-A=B

90=A+B

or

A=90-B

Answer 2

Step-by-step explanation:

tanA = cotB

=> tanA = 1/tanB

=> 1 = tanAtanB

=> 1 - tanAtanB = 0  ----- *

tan(A+B) = [tanA + tanB]/[1 - tanAtanB]

By *, tan(A+B) = not defined

Thus, A+B = 90

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