Mathematics, 20.02.2022 03:50, mathlady12
1. Given sine of x equals negative 12 over 13 and cos x > 0, what is the exact solution of cos 2x?
A. negative 119 over 169
B. negative 144 over 169
C. 119 over 169
D. 144 over 169
2.How many solutions exist for the equation cos 2ΞΈ β sin2ΞΈ = 1 on the interval [0, 360Β°)?
A. 0
B. 1
C.2
D. 3
Answers: 2
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1. Given sine of x equals negative 12 over 13 and cos x > 0, what is the exact solution of cos 2x...
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