Question

1-tanA/1+tanA = cotA-1/cotA+1​

Answer 1

Answer:

1-tan A/(1+tanA)= 1- (1/cotA) /1+(1/cotA)

=(cotA-1) /(cotA+1) *cotA/cotA

==(cotA-1) /(cotA+1)

proved.

Answer 2

Answer:

0

Step-by-step explanation:

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