Упростите выражение: [tex]4sin^22 \alpha +16sin^4-16sin^2 \alpha [/tex]. Created by aliso4chka. algebra-ru

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manyny06

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Решение смотри на фотографии

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abduqodirovaziz Ирина, можете помочь с этим http://znanija.com/task/12647113

abduqodirovaziz $4sin^{2}2\alpha+16sin^{4}\apha-16sin^{2}\alpha=4*4sin^{2}\alpha*cos^{2}\alpha+16sin^{4}\alpha-16sin^2\alpha=16sin^{2}\alpha(cos^2+sin^{2}-1)=16sin^{2}\alpha(1-1)=16sin^{2}\alpha*0=0$

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