Nội dung text 1. Physical World.pdf
1. Graph is drawn between y–x axis. Which of the following equation is correct for graph : (1) y x = − + 3 3 (2) y x = + 3 3 (3) y x = − 3 3 (4) 3 3 y x = + 2. If y = x2 + cos2x + eax then find dy/dx: (1) 2x – 2 sin 2x + aeax (2) 2x + 2sin2x + eax (3) 2x – sin2x + eax (4) 2x + 2sin2x + aeax KEY 1 – 2 2 1 Physical World
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