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تسجيل مستخدم جديدSecond Hankel Determinant for certain class of bi-univalent functions defined by Chebyshev polynomials
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Making use of Chebyshev polynomials, we obtain upper bound estimate for the second Hankel determinant of a subclass $mathcal{N}_{sigma }^{mu}left( lambda ,tright) $ of bi-univalent function class $sigma.$
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