Answer to a math question Sabendo+que+o+tri%C3%A2ngulo+ABC+%C3%A9+ret%C3%A2ngulo+e+que+um+de+seus+%C3%A2ngulos+mede+30+quanto+mede+o+terceiro+ tri%C3%A2ngulo
What is the definite integral of ∫(5x^4 + 2x^2 + 3) dx from 0 to 2?
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Math question: In a circle, if an angle at the center is twice the size of an angle at the circumference, and the angle at the circumference measures 60 degrees, what is the measure of the angle at the center?
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Math question: What is the equation of an ellipse in standard form, centered at the origin, with semi-major axis a and semi-minor axis b?