Question

Find the general solution of sec²x=1-tan²x

Answer 1

Answer:

This are the formulae::

$1) \: { \sec }^{2} x = 1 + { \tan}^{2} x \\ 2) \: { \sec}^{2} x - 1 = { \tan }^{2} x \\ 3) \: { \sec}^{2}x - { \tan }^{2} x = 1$

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