kingtrent81
22.04.2020 •
Mathematics
Cos ²A+ cos²B + cos² c = 1-2 COS A COSB Cose plz tell me all steps
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Ответ:
18
Step-by-step explanation:
Using Zero Product Property, we can split this equation into two separate equations by setting each factor to 0. The equations are:
10x + 33 = 0 or 11x + 60 = 0
10x = -33 or 11x = -60
x = -33/10 or x = -60/11
Multiplying the two solutions together, we get -33/10 * -60/11 = 1980 / 110 = 18.