50 POINTS
(1-tan²(x) / sec²(x))=cos(2x)
VERIFY IF THE EXPRESSIONS ARE EQUAL
INCLUDE STE...
Mathematics, 29.01.2021 20:10 robert7248
50 POINTS
(1-tan²(x) / sec²(x))=cos(2x)
VERIFY IF THE EXPRESSIONS ARE EQUAL
INCLUDE STEPS
Answers: 3
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