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elizavetadonch
@elizavetadonch
July 2022
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1) Докажите тождество:
4cos^4альфа - 2cos2альфа - 0,5cos4альфа = 3/2
2) Решите уравнение:
sin^4x*cos^2x - cos^4x*sin^2x = cos2x
3) Решить неравенство:
log (3x^2-x) <или=2
(основание 1-х)
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