Ответ: 37.2
Объяснение:
d²+4d-8d-32-(d²-14d+5d-70)=d²-4d-32-d²+14d-5d+70=5d+38
d=-0.16⇒5*(-0.16)+38=38-0.8=37.2
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Verified answer
Ответ: 37.2
Объяснение:
d²+4d-8d-32-(d²-14d+5d-70)=d²-4d-32-d²+14d-5d+70=5d+38
d=-0.16⇒5*(-0.16)+38=38-0.8=37.2
cot 4x (sin 5x + sin 3x) = cot x (sin 5x – sin 3x).
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