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nata472
@nata472
July 2022
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sin^2a+tg^2+cos^2a=1/cos^2a
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Владіслав228
Sin^2a+cos^2a+tg^2a=1/cos^2a
(sin^2a+cos^2a=1)
1+tg^2a=1/cos^2a
1/cos^2a=1/cos^2a
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Thanks 1
nata472
Спасибо большое!
Владіслав228
всё понятно?
nata472
Да, благодарю.
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Answers & Comments
(sin^2a+cos^2a=1)
1+tg^2a=1/cos^2a
1/cos^2a=1/cos^2a