Jika nilai sin (2x) = 1/3 5^(1/2) dan 90 <=2x<=180 , nilai
Saluranedukasion 2024-07-21T02:14:08.000Z
Jika nilai sin (2x) = 1/3 5^(1/2) dan 90 <=2x<=180 , nilai cos x adalah . . . .
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