What is the general solution for (1-tan^2(A))/(1+tan^2(A))=1 ?

The general solution for (1-tan^2(A))/(1+tan^2(A))=1 is A=pin

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(1-tan^2(A))/(1+tan^2(A))=1

\frac{1 - tan ^{2} ( A )}{1 + tan ^{2} ( A )} = 1

A = πn

Solution steps

\frac{1 - tan ^{2} ( A )}{1 + tan ^{2} ( A )} = 1

Solve by substitution

tan (A) = 0

tan (A) = 0 : A = πn

Combine all the solutions

A = πn

sin (2 x) - 0.8 = 0

tan (a) = \frac{15}{7}, sin (a)

2 cos^{2} (θ) + sin (θ) = 2

tanh^{2} (x) + 5 sech (x) - 5 = 0

a, P = cot^{2} (a)

What is the general solution for (1-tan^2(A))/(1+tan^2(A))=1 ?
The general solution for (1-tan^2(A))/(1+tan^2(A))=1 is A=pin